Wildguzzi.com
General Category => Bike Builds, Rebuilds And Restorations Only => Topic started by: Antietam Classic Cycle on May 18, 2018, 09:42:59 PM
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By popular request. Restoration of a customer's early 3 1/2 Sport. Photos added as time allows.
https://www.flickr.com/photos/98421140@N05/albums/72157696971789835
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These photo-essay and tips are invaluable! Thanks for sharing!
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are those 'fangs' under the rocker cover drip condensed oil right into thes funnel shape holes on the rocker arm?
Will there be any lubrication problem to the rocker arms when the engine is started after parking for a long period of time?
(http://i64.tinypic.com/29w7cqq.jpg)
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Yes, the oil pressure is only routed through the crankshaft, for the big ends and the single main plain bearing (usually replaced with a new roller bearing during a rebuild, leaves more oil pressure for the rods and works better - I think the plain bearings were used to cut costs at the factory, the very early models had standard bearings on both sides).
The heads do not get any pressurised oil. Old V35/V50 Guzzis are somewhat similar and also have those fangs for oil to condense on the valve covers (although Guzzis still have a little oil routed to the head).
I guess lubrication of the rockers is not that critical. After being warmed up, a Morini can easily work at high rpm. I've rebuilt and worked on a few Morini engines, and never seen rockers that would no longer be usable. But of course, revving a cold engine will cause wear. I hope adding some MoS2 to the oil helps with it a bit (they have a dry clutch anyway).
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are those 'fangs' under the rocker cover drip condensed oil right into thes funnel shape holes on the rocker arm?
Will there be any lubrication problem to the rocker arms when the engine is started after parking for a long period of time?
If one was "recommissioning" a Morini after a long period of storage, it certainly wouldn't hurt to remove a rocker cover and squirt some oil into the rockers. Of course, this would only be a small part of the work that should be done. Number one on the list would be replacing the timing belt.
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Thanks for posting, this is great1
In a couple weeks I will be reassembling my 500 motor, this will be a great help.
I have a question on the engine case oil seals, did you install them prior to placing the cases over the crank and transmission shafts and did you fit the seal protectors as the case was being dropped over the shafts, I am not sure of the sequence.
Cheers
Jim
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Thanks for posting, this is great1
In a couple weeks I will be reassembling my 500 motor, this will be a great help.
I have a question on the engine case oil seals, did you install them prior to placing the cases over the crank and transmission shafts and did you fit the seal protectors as the case was being dropped over the shafts, I am not sure of the sequence.
Cheers
Jim
Seals are installed, seal protectors greased and slipped into the seals, then the right case half is slipped down over the shafts. Once it is in place, the seal protectors are removed. I wrapped a layer of clear packing tape around the shift shift splines to protect that seal as well.
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They can also be installed after the cases are bolted together. I find it easier this way, especially if you do not have the tapered shaft ends. Also one less thing to worry about when getting the cases together.
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Seals are installed, seal protectors greased and slipped into the seals, then the right case half is slipped down over the shafts. Once it is in place, the seal protectors are removed. I wrapped a layer of clear packing tape around the shift shift splines to protect that seal as well.
Thanks!
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They can also be installed after the cases are bolted together. I find it easier this way, especially if you do not have the tapered shaft ends. Also one less thing to worry about when getting the cases together.
Sure they can, but to me it's just easier to do it the way the factory manual says to do it. I didn't have the seal protectors, but it was a simple 1/2 hour enjoyable job on the lathe to make them. With them there's no worry at all.
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OMG was that one a mess. Did it have water in the engine?
(https://farm1.staticflickr.com/829/42147016252_b3fffba26c_b.jpg) (https://flic.kr/p/27doty1)Morini 3 1/2 engine parts as they arrived. (https://flic.kr/p/27doty1) by Charlie Mullendore (https://www.flickr.com/photos/98421140@N05/), on Flickr
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I quote Charli's words
All engine internals were stored in boxes in a damp basement. :-(
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Sure they can, but to me it's just easier to do it the way the factory manual says to do it. I didn't have the seal protectors, but it was a simple 1/2 hour enjoyable job on the lathe to make them. With them there's no worry at all.
Unfortunately I have a really old lathe (British made, over 100 years old, with various safety/name plates in English, German and Italian - must have travelled all over Europe before it came to me). Takes too long to turn the head for a taper, so as lazy as I am, I tried assembling the engine without them. Sure enough, I've ruined the gearbox output shaft seal. But I then popped it out with the engine assembled and simply installed a new one in the assembled engine (and carefully slid it over the axle). With the tapered ends, it's okay to do it the factory way, but if you do not have them they can easily be installed on the assembled engine...
I know a person who has a really neat 80's (Croatian) lathe (high quality model, I think about 1m of work area length, for tool making, not series production), and also an 80's Swiss mill (about 0.5 or 0.8m work area, was also used for making injection mould tools). He bought them new, and are in perfect condition. He isn't quite ready to sell them yet, but he is really old (about 80). I hope he will decide to sell them once, would be a real shame if they were dumped at a scrap yard when he goes... You can do almost anything with a good mill and a lathe (even my ancient lathe has helped me countless times).
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nice pictures!
and a very clean job , how did you get the cases that clean?
i never manage completely clean cases on morini engines, even after bead blasting.
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nice pictures!
and a very clean job , how did you get the cases that clean?
i never manage completely clean cases on morini engines, even after bead blasting.
The customer had them vapor blasted prior to bringing them to me. Whoever did the job could have cleaned them a little better afterwards. I spent several hours digging media out of bolts holes and such - once the liquid evaporates, it dries to a near concrete hardness.
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The customer had them vapor blasted prior to bringing them to me. Whoever did the job could have cleaned them a little better afterwards. I spent several hours digging media out of bolts holes and such - once the liquid evaporates, it dries to a near concrete hardness.
ditto on flushing the parts after vapour blasting, I spend more time rinsing with hot water and then blowing out with compressed air (often several times) than cleaning, its worth it thought as the parts are like new once vapour blasted.
Looking forward to more updates :thumb:
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ditto on flushing the parts after vapour blasting, I spend more time rinsing with hot water and then blowing out with compressed air (often several times) than cleaning, its worth it thought as the parts are like new once vapour blasted.
Looking forward to more updates :thumb:
Probably won't be any progress until June. Several "deadlines" to meet coming up this week and next, plus I'm hoping to take an overnight trip on the Convert over the Memorial Day weekend.
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The customer had them vapor blasted prior to bringing them to me. Whoever did the job could have cleaned them a little better afterwards. I spent several hours digging media out of bolts holes and such - once the liquid evaporates, it dries to a near concrete hardness.
impressive results!
worth the efford to clean them
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More photos added to the album last night.
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fantastic workmanship :bow: :bow: :bow:
Thanks for providing this great resource, my engine rebuild took a left turn, the new valves NLM sent me require new style matching valve spring collets (kind of a spilt O ring style recess in the valve), should get the parts next week.
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Great job! Seems it was really rough to begin with. I wish I converted mine to the roller bearing when I had the engine apart, but I hope it will run with a new plain bearing just fine too, as long as I replace the oil often enough...
Will the clutch cover and the outer part of the generator/chain engine cover and the valve covers be polished? It just does not look right otherwise...
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fantastic workmanship :bow: :bow: :bow:
Thanks for providing this great resource, my engine rebuild took a left turn, the new valves NLM sent me require new style matching valve spring collets (kind of a spilt O ring style recess in the valve), should get the parts next week.
I remember having the "early" vs. "late" valve discussion with Stuart. If one thinks Guzzi made changes to their bikes often, they would be astounded at how often Morini made changes. :laugh:
Will the clutch cover and the outer part of the generator/chain engine cover and the valve covers be polished? It just does not look right otherwise...
The customer doesn't want to, even though that's how it was done originally and IMO it would look much better. The arms on the brake backing plates have been vapor blasted and I those too should be polished. I'll be covering myself in black crud making them shiny. :wink:
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Finally making some progress. Front engine mounting plates came back from the painter last week and my buddy Carl dropped by today to help me get the engine into the frame. We laid the engine on it's side, blocked it up level, laid the frame over it and slipped the bolts into place.
Turned it upright and tightened all of the engine mounting bolts.
(https://thumb.ibb.co/hGFixJ/Morini_assembly_06292018_001.jpg) (https://ibb.co/hGFixJ)
(https://thumb.ibb.co/kCAGHJ/Morini_assembly_06292018_002.jpg) (https://ibb.co/kCAGHJ)
Mounted the centerstand. Used the "penny trick" (except using washers) to extend the spring for installation.
(https://thumb.ibb.co/jdGTWd/Morini_assembly_06292018_004.jpg) (https://ibb.co/jdGTWd)
Up on the centerstand, blocks under the engine, tied it down. Installed the swingarm.
(https://thumb.ibb.co/fXn7Py/Morini_assembly_06292018_005.jpg) (https://ibb.co/fXn7Py)
(https://thumb.ibb.co/keTE4y/Morini_assembly_06292018_006.jpg) (https://ibb.co/keTE4y)
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Looking good!
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A few more from today.
Rear fender and chain guard installed.
(https://thumb.ibb.co/cxvx7J/Morini_assembly_2_06292018_001.jpg) (https://ibb.co/cxvx7J)
The original steering damper has a "dead spot" in it's travel, so I was hoping that I could use one for a Guzzi. "Close but no cigar" not enough travel for full left lock.
(https://thumb.ibb.co/kUB4nJ/Morini_assembly_2_06292018_002.jpg) (https://ibb.co/kUB4nJ)
Installed the airbox and rubber boots to the carbs. The right side doesn't line up too well and will need the manifold repositioned to correct this.
(https://thumb.ibb.co/inJ61d/Morini_assembly_2_06292018_003.jpg) (https://ibb.co/inJ61d)
The manifold assembly wasn't locked in place yet, since I knew this would be an issue.
(https://thumb.ibb.co/itnoEy/Morini_assembly_2_06292018_004.jpg) (https://ibb.co/itnoEy)
I somehow got the left side perfect though!
(https://thumb.ibb.co/maueMd/Morini_assembly_2_06292018_005.jpg) (https://ibb.co/maueMd)
That's all for today.
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Charlie is there a particular sequence you follow to install the air box . rubber boots and carbs? It looks like a tight fit!
Beautiful work by the way, its going to be a gorgeous bike.
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Charlie is there a particular sequence you follow to install the air box . rubber boots and carbs? It looks like a tight fit!
Beautiful work by the way, its going to be a gorgeous bike.
Carbs can be on the engine (at least on the early 3 1/2) but installing the airbox might easier with them off. So, airbox first, then carbs, slip the boots onto the carbs, then rotate them up and fiddle with them until they're seated into the airbox openings. Really quite easy.
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Thanks Charlie.
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Back to working on the Morini along with the V7 Sport project and a '71 police Ambo. Started on the forks this evening.
Slipped the forks into the triples and drained them.
(https://thumb.ibb.co/mbap3o/Morini_forks_1.jpg) (https://ibb.co/mbap3o)
With them secured in the triples, it's easy to remove the lower bolt and sliders.
(https://thumb.ibb.co/bOjz3o/Morini_forks_2.jpg) (https://ibb.co/bOjz3o)
Didn't feel like getting all greasy (again) just before I quit for the night, so installed some clean parts.
(https://thumb.ibb.co/jZwCOo/Morini_forks_3.jpg) (https://ibb.co/jZwCOo)
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Nice work. Thanks for the photos and descriptions.
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Sliders cleaned, seals replaced, forks reassembled and filled with fresh oil. Fender bolted in place.
(https://thumb.ibb.co/kfk118/28735060997_09a85c87c2_b.jpg) (https://ibb.co/kfk118)
(https://thumb.ibb.co/dhKiET/28735060347_44381b80a8_b.jpg) (https://ibb.co/dhKiET)
The brake shoes had already been assembled to the backing plate, but the anchor bolt was left out, so I had to remove them and insert the bolt.
(https://thumb.ibb.co/cxYX8o/43622667461_49c081a14c_b.jpg) (https://ibb.co/cxYX8o)
(https://thumb.ibb.co/cz68g8/28735058897_43f58773b7_b.jpg) (https://ibb.co/cz68g8)
Assembled the speedometer drive.
(https://thumb.ibb.co/d2b8g8/43622665421_4b2142db06_b.jpg) (https://ibb.co/d2b8g8)
(https://thumb.ibb.co/nn4uM8/28735057187_8df816f53c_b.jpg) (https://ibb.co/nn4uM8)
Missing the 58 x 70 x 6 grease seal that goes here. Ordered it today.
(https://thumb.ibb.co/kO2EM8/28735056197_7153907fbe_b.jpg) (https://ibb.co/kO2EM8)
Test fitted the front wheel and brakes. It'll have to come back off once the seal arrives.
(https://thumb.ibb.co/gm2s8o/43622661001_0764883a46_b.jpg) (https://ibb.co/gm2s8o)
At some point the threads in the headlight bucket were drilled out.
(https://thumb.ibb.co/ftnQTo/29752920088_a773cc1bec_b.jpg) (https://ibb.co/ftnQTo)
Probably to mount these (obviously non-original) Japanese signals.
(https://thumb.ibb.co/mKNs8o/43622658421_e0900faf2f_b.jpg) (https://ibb.co/mKNs8o)
For now, I used nuts on the inside of the bucket. Eventually, I'll repair the threads with a Helicoil.
(https://thumb.ibb.co/gSvZM8/29752917768_ac6fdfe83a_b.jpg) (https://ibb.co/gSvZM8)
Test fitting the clutch cable. Starting to look like a motorcycle again!
(https://thumb.ibb.co/c5M8g8/43622656211_d669933bbe_b.jpg) (https://ibb.co/c5M8g8)
Front brake cable is next.
(https://thumb.ibb.co/eAaquT/43622654831_18cdc0f186_b.jpg) (https://ibb.co/eAaquT)
Test fitting.
(https://thumb.ibb.co/bDtzoo/29752913698_2efb97d44a_b.jpg) (https://ibb.co/bDtzoo)
Need to find the barrel for the lever end. It's likely somewhere in all of the misc. hardware.
(https://thumb.ibb.co/fLZ5To/43622652661_87bfba9c35_b.jpg) (https://ibb.co/fLZ5To)
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The front brake on the early 3 1/2 Sport is sure pretty!
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The barrel has gone missing, so I found another in my stash and modified it.
(https://thumb.ibb.co/e6znto/Morini_assembly_1_0725.jpg) (https://ibb.co/e6znto)
Had to enlarge the holes and cut a slot.
(https://thumb.ibb.co/jqrBKT/Morini_assembly_2_0725.jpg) (https://ibb.co/jqrBKT)
Fits perfectly and the brakes work, but it doesn't extend down to actuate the brake switch like the original.
(https://thumb.ibb.co/dF3DYo/Morini_assembly_3_0725.jpg) (https://ibb.co/dF3DYo)
Hooked the cable to the speedometer...
(https://thumb.ibb.co/jCJQeT/Morini_assembly_4_0725.jpg) (https://ibb.co/jCJQeT)
...but I'm missing the retainer clip that secures the cable inside the nut down at the speedometer drive.
(https://thumb.ibb.co/kRgBKT/Morini_assembly_5_0725.jpg) (https://ibb.co/kRgBKT)
Blurry photo of the cleaned and greased throttle
(https://thumb.ibb.co/dEMYYo/Morini_assembly_6_0725.jpg) (https://ibb.co/dEMYYo)
Less blurry photo of the same
(https://thumb.ibb.co/eQMp68/Morini_assembly_7_0725.jpg) (https://ibb.co/eQMp68)
I started working towards installing the rear wheel, but one bearing of the sprocket carrier felt a little rough. So, I removed the bearings and cleaned them. One needs to be replaced, the other is fine. Ordered the bearing and a grease seal.
(https://thumb.ibb.co/mVV5eT/Morini_assembly_8_0725.jpg) (https://ibb.co/mVV5eT)
Slipped the new reproduction rubbers onto the footrests and test fit them to the frame.
(https://thumb.ibb.co/ceXkeT/Morini_assembly_9_0725.jpg) (https://ibb.co/ceXkeT)
Installed the sidestand and test fitted the brake pedal as well.
(https://thumb.ibb.co/gUtrKT/Morini_assembly_10_0725.jpg) (https://ibb.co/gUtrKT)
Test mounted the brake light switch, hooked the cable to the pedal.
(https://thumb.ibb.co/nw8aeT/Morini_assembly_11_0725.jpg) (https://ibb.co/nw8aeT)
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The barrel has gone missing, so I found another in my stash and modified it.
To paraphrase a line in one of my favorite movies, "Charlie, I think if you were named Admiral of the Turkish navy, you could dip into your "stash" and come up with the appropriate badges of rank."
Sure saved me a few times!
That bike is looking incredible. :thumb:
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Replaced both bearings and the seal in the sprocket carrier, mounted up the rear wheel.
(https://thumb.ibb.co/eC9hET/Morini_assembly_0727_001.jpg) (https://ibb.co/eC9hET)
Hooked up the rear brake cable
(https://thumb.ibb.co/e27r8o/Morini_assembly_0727_002.jpg) (https://ibb.co/e27r8o)
(https://thumb.ibb.co/jZztM8/Morini_assembly_0727_003.jpg) (https://ibb.co/jZztM8)
Down on it's wheels again!
(https://thumb.ibb.co/cYX2ET/Morini_assembly_0727_004.jpg) (https://ibb.co/cYX2ET)
Bird's-eye view.
(https://thumb.ibb.co/dQEtM8/Morini_assembly_0727_005.jpg) (https://ibb.co/dQEtM8)
The seal for the speedo drive side of the wheel arrived today, so I'll wrap that up next. That be a few days from now though - need to make some progress on other projects.
(https://thumb.ibb.co/kDViM8/Morini_assembly_0727_006.jpg) (https://ibb.co/kDViM8)
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You are setting the bar high on this one, looks fantastic!
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You are setting the bar high on this one, looks fantastic!
There is still some "patina" on various parts, the owner wants it that way. So I must restrain myself and leave them as they were brought to me. :grin:
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Seal installed in the right front brake backing plate.
(https://thumb.ibb.co/jN1owU/Morini_3_1_2_Sport_0807_001.jpg) (https://ibb.co/jN1owU)
Still haven't found a clip for the speedometer cable...
(https://thumb.ibb.co/jUxTwU/Morini_3_1_2_Sport_0807_002.jpg) (https://ibb.co/jUxTwU)
...so I made one from an M6 flat washer.
(https://thumb.ibb.co/e3LRi9/Morini_3_1_2_Sport_0807_003.jpg) (https://ibb.co/e3LRi9)
Speedo cable done!
(https://thumb.ibb.co/h5Wz39/Morini_3_1_2_Sport_0807_004.jpg) (https://ibb.co/h5Wz39)
Drive chain is next.
(https://thumb.ibb.co/gofgGU/Morini_3_1_2_Sport_0807_005.jpg) (https://ibb.co/gofgGU)
Installed...
(https://thumb.ibb.co/d10gGU/Morini_3_1_2_Sport_0807_006.jpg) (https://ibb.co/d10gGU)
But it rubs on the clutch arm when the lever is pulled in and the wheel spun.
(https://thumb.ibb.co/hT3qAp/Morini_3_1_2_Sport_0807_007.jpg) (https://ibb.co/hT3qAp)
I had the countershaft sprocket on backwards :embarrassed:, flipped it over and now there's plenty of clearance.
(https://thumb.ibb.co/nnJOVp/Morini_3_1_2_Sport_0807_008.jpg) (https://ibb.co/nnJOVp)
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Cleaned the fuse block and voltage regulator and installed them along with the backing plate.
(https://thumb.ibb.co/iSZBi9/Morini_3_1_2_Sport_0808_001.jpg) (https://ibb.co/iSZBi9)
The tool tray is installed along with them.
(https://thumb.ibb.co/msYFAp/Morini_3_1_2_Sport_0808_002.jpg) (https://ibb.co/msYFAp)
Slipped the rubber boot onto the alternator harness.
(https://thumb.ibb.co/e0u0bU/Morini_3_1_2_Sport_0808_003.jpg) (https://ibb.co/e0u0bU)
Connected the stator leads to the fuseblock and voltage regulator.
(https://thumb.ibb.co/mDXWi9/Morini_3_1_2_Sport_0808_004.jpg) (https://ibb.co/mDXWi9)
Cut a piece of acid neutralizing battery mat...
(https://thumb.ibb.co/bze0bU/Morini_3_1_2_Sport_0808_005.jpg) (https://ibb.co/bze0bU)
...and set the battery into place.
(https://thumb.ibb.co/bzQHO9/Morini_3_1_2_Sport_0808_006.jpg) (https://ibb.co/bzQHO9)
Connected the rear brake light switch at both ends.
(https://thumb.ibb.co/ciUGGU/Morini_3_1_2_Sport_0808_011.jpg) (https://ibb.co/ciUGGU) (https://thumb.ibb.co/bYmkAp/Morini_3_1_2_Sport_0808_012.jpg) (https://ibb.co/bYmkAp)
Mounted the transducers.
(https://thumb.ibb.co/gxpoVp/Morini_3_1_2_Sport_0808_007.jpg) (https://ibb.co/gxpoVp)
(https://thumb.ibb.co/nM4Nqp/Morini_3_1_2_Sport_0808_008.jpg) (https://ibb.co/nM4Nqp)
And the terminal block just ahead of them.
(https://thumb.ibb.co/dReNqp/Morini_3_1_2_Sport_0808_009.jpg) (https://ibb.co/dReNqp)
Connected the harness between the ignition switch...
(https://thumb.ibb.co/dkXxO9/Morini_3_1_2_Sport_0808_010.jpg) (https://ibb.co/dkXxO9)
...and fuseblock.
(https://thumb.ibb.co/fnqj39/Morini_3_1_2_Sport_0808_013.jpg) (https://ibb.co/fnqj39)
Hooked up the taillight at both ends.
(https://thumb.ibb.co/egEYwU/Morini_3_1_2_Sport_0808_016.jpg) (https://ibb.co/egEYwU)
(https://thumb.ibb.co/ewzoVp/Morini_3_1_2_Sport_0808_017.jpg) (https://ibb.co/ewzoVp)
The harness from the battery to the fuseblock was looking a bit melted.
(https://thumb.ibb.co/bVOAbU/Morini_3_1_2_Sport_0808_019.jpg) (https://ibb.co/bVOAbU)
So, I made a new one with heavier gauge wires and connected it.
(https://thumb.ibb.co/bVTnO9/Morini_3_1_2_Sport_0808_020.jpg) (https://ibb.co/bVTnO9)
(https://thumb.ibb.co/kdCgi9/Morini_3_1_2_Sport_0808_021.jpg) (https://ibb.co/kdCgi9)
Connected the harness from the ignition pickups to the transducers.
(https://thumb.ibb.co/cVxE39/Morini_3_1_2_Sport_0808_022.jpg) (https://ibb.co/cVxE39)
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Your getting real close, its looking great!
On my 500 build I was flipping through the parts diagrams last night and realized I forgot to install the O ring onto the end of the kickstart shaft before fitting the outer case, darn!!
I need to remove the outer case again, the first two times was to get enough tension on the kickstart return spring to bring the pedal back up with a snap.
Nice work making the cable clip from a washer!
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Your getting real close, its looking great!
On my 500 build I was flipping through the parts diagrams last night and realized I forgot to install the O ring onto the end of the kickstart shaft before fitting the outer case, darn!!
I need to remove the outer case again, the first two times was to get enough tension on the kickstart return spring to bring the pedal back up with a snap.
Nice work making the cable clip from a washer!
Right now I'm waiting on Moto Storiche Italiane to send me a total for a pair of new exhaust nuts. Guessing that'll be sometime in Sept! :grin:
"Necessity is the mother of invention." I was just too tired to go searching for such a small, seemingly insignificant part. :wink:
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Excited to see the finished product...loving the build thread! :thumb:
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Outstanding work, Charlie! That is going to be a beautiful 3 1/2 when you are finished. This thread is a fascinating document to your meticulous rebuild. You and Jim are certainly on a tier above most of us mortals....
One bit that always impresses me is the painstaking efforts to restore old-fashioned cable drive speedos and tachs on vintage bikes from several decades ago. That's the difference between a restoration - where the goal is to return a bike as closely as possible to OEM configuration and condition as delivered - and a modernization, where the goal is to adopt more recent solutions that can improve performance, simplify installation or lighten the bike (eg. lithium batteries, speedos and tachs free of cable drives, lightweight starters, etc.). I admit to being shamelessly in the latter camp, but I am full of admiration and awe for the true craftsmen like you and Jim who can pull off gorgeous, authentic restorations like this. My sincere congratulations!!
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A few more harnesses to go.
(https://thumb.ibb.co/c9kS0p/Morini_wiring_0814_001.jpg) (https://ibb.co/c9kS0p) (https://thumb.ibb.co/muJrRU/Morini_wiring_0814_002.jpg) (https://ibb.co/muJrRU)
(https://thumb.ibb.co/bzY86U/Morini_wiring_0814_003.jpg) (https://ibb.co/bzY86U)
Warning lights done.
(https://thumb.ibb.co/nvegRU/Morini_wiring_0814_004.jpg) (https://ibb.co/nvegRU)
Started hooking up the tach, but discovered there's no light socket or tiny M3 nut that secures the ground wire.
(https://thumb.ibb.co/hRHqLp/Morini_wiring_0814_005.jpg) (https://ibb.co/hRHqLp)
Connections all done to the transducers.
(https://thumb.ibb.co/eB4sY9/Morini_wiring_0814_006.jpg) (https://ibb.co/eB4sY9)
Starting to look like an "explosion in a spaghetti factory"... in other words, just like original!
(https://thumb.ibb.co/fqVc0p/Morini_wiring_0814_007.jpg) (https://ibb.co/fqVc0p)
Mounted the horn and connected the electrovalve temporarily. Ground the paint away from the ground point on both sides of the frame.
(https://thumb.ibb.co/nhvo6U/Morini_wiring_0814_008.jpg) (https://ibb.co/nhvo6U)
Installing the harness for the signals.
(https://thumb.ibb.co/gUQo6U/Morini_wiring_0814_009.jpg) (https://ibb.co/gUQo6U)
Connecting the headlight.
(https://thumb.ibb.co/jAz4fp/Morini_wiring_0814_010.jpg) (https://ibb.co/jAz4fp)
Need to attach all of the blue wires to a clean ground on the frame.
(https://thumb.ibb.co/fkP4fp/Morini_wiring_0814_011.jpg) (https://ibb.co/fkP4fp)
Even more spaghetti.
(https://thumb.ibb.co/m0dmt9/Morini_wiring_0814_012.jpg) (https://ibb.co/m0dmt9)
Time for the first electrical test. Connected the battery.
(https://thumb.ibb.co/hWNPfp/Morini_wiring_0814_013.jpg) (https://ibb.co/hWNPfp)
Nothing came on when I turned the key. :sad: Working on finding the problem.
(https://thumb.ibb.co/ii2wt9/Morini_wiring_0814_014.jpg) (https://ibb.co/ii2wt9)
Narrowed it down to the key switch. When I touched the red to the brown, the main circuit powered up.
(https://thumb.ibb.co/esdfLp/Morini_wiring_0814_015.jpg) (https://ibb.co/esdfLp)
Disassembled the switch and cleaned the contacts, still didn't work.
(https://thumb.ibb.co/b7MBRU/Morini_wiring_0814_016.jpg) (https://ibb.co/b7MBRU)
Someone has had the switch apart before and misplaced the tiny springs that push against the contacts.
(https://thumb.ibb.co/ht2wt9/Morini_wiring_0814_017.jpg) (https://ibb.co/ht2wt9)
I cut sections from an ink pen spring, inserted them, reassembled and everything finally came to life!
(https://thumb.ibb.co/jmX70p/Morini_wiring_0814_018.jpg) (https://ibb.co/jmX70p)
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Ink pen spring! Great workaround.
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Nice progress. After making my Morini 500 harness pieces and refitting them to the CEV fuse box the method to Morini's madness makes sense, it may not look 'organized' but by having a separate harness for each component it does make trouble shooting and isolation much easier.
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Thanks to Greg Bender, I was able to wrap up the tach wiring. He sent me a bulb holder, M3 nut and washer.
(https://thumb.ibb.co/fzT8YK/Morini_Misc_001.jpg) (https://ibb.co/fzT8YK)
I also bought a nice "no-load" flasher and bracket from him. Started securing the harness to the frame.
(https://thumb.ibb.co/dCDxSe/Morini_Misc_002.jpg) (https://ibb.co/dCDxSe)
More zip-ties to secure the harness.
(https://thumb.ibb.co/ix1vDK/Morini_Misc_003.jpg) (https://ibb.co/ix1vDK)
Corrected the angle of the rear cylinder carburetor by rotating the manifold. Now to lock it in place.
(https://thumb.ibb.co/cfh2tK/Morini_Misc_004.jpg) (https://ibb.co/cfh2tK)
In the meantime, lubed and installed the throttle cables to test fit. One is about 4 mm longer than the other. It could really use new cables.
(https://thumb.ibb.co/m1VNtK/Morini_Misc_005.jpg) (https://ibb.co/m1VNtK)
(https://thumb.ibb.co/i1x2tK/Morini_Misc_006.jpg) (https://ibb.co/i1x2tK)
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probably a good idea to fit a set of relays inside the headlight, the stock handlebar switches tend to overheat and melt if the bike ridden with lights.
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probably a good idea to fit a set of relays inside the headlight, the stock handlebar switches tend to overheat and melt if the bike ridden with lights.
Yes, I am well aware of that issue - the same one that "plagues" Loopframe Guzzis. However, since the original 45/40 watt sealed beam blew out as soon as I put power to it, I will be fitting an Autopal H4 headlight with RTD LED bulb. The LED bulb only uses 20 watts on low and 40 on high, so not enough load to melt the switch.
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Nice work Charlie, super clean work.
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Hey Charlie - is there a particular RTD bulb you prefer, or a place you normally get yours?
Thanx!
ps - BTW - great work!
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Hey Charlie - is there a particular RTD bulb you prefer, or a place you normally get yours?
Thanx!
ps - BTW - great work!
This is the bulb I use:
https://www.amazon.com/gp/product/B06XHMJQCB/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
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I've noticed you (also) use two gaskets on the complicated early cast carburetor intakes. If I remember right, they originally came with O-ring seals in that place. They were known to leak, but I've also simply tried using a gasket there (also left the O-ring in there), and never had a problem.
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I've noticed you (also) use two gaskets on the complicated early cast carburetor intakes. If I remember right, they originally came with O-ring seals in that place. They were known to leak, but I've also simply tried using a gasket there (also left the O-ring in there), and never had a problem.
They have both gaskets and o-rings, that's the way the parts diagrams show it. Right now they are only "test fitted", when I final assemble them, I'll apply a little sealer to make sure there are no leaks.
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Well, I've also straightened them on a flat surface with 800 grit sandpaper, perhaps worth a try if you have any problems... My 77' was mostly stock, I really doubt anyone ever pulled the intakes off, but it certaintly only had o-rings there. But who knows, it's even possible they forgot the gasket at the factory, or decided to include it later (although mine is a fairly late model for the alloy intakes).
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Well, I've also straightened them on a flat surface with 800 grit sandpaper, perhaps worth a try if you have any problems... My 77' was mostly stock, I really doubt anyone ever pulled the intakes off, but it certaintly only had o-rings there. But who knows, it's even possible they forgot the gasket at the factory, or decided to include it later (although mine is a fairly late model for the alloy intakes).
If you look through all of the photos, you'll notice that I already flattened all of the surfaces.
Original parts diagram. 17 are o-rings, 18 are gaskets.
(https://thumb.ibb.co/f6SQhz/5b5352e5_5869_4935_b5b9_36a1b833f857_png_embedded_og.png) (https://ibb.co/f6SQhz)
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Well, it's odd that mine did not have it.
By the way, I remembered I have this A4 copy of the english Morini manual on my PC:
https://drive.google.com/file/d/0B90E_BFXZAM5LXdQVmtkS0pnTEE/view?usp=sharing
It's really hard to find one, there's only the small version which is also in Italian and with smaller photos. This one is a bit more clear with larger photos... If it is any help to you. :thumb:
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Well, it's odd that mine did not have it.
By the way, I remembered I have this A4 copy of the english Morini manual on my PC:
https://drive.google.com/file/d/0B90E_BFXZAM5LXdQVmtkS0pnTEE/view?usp=sharing
It's really hard to find one, there's only the small version which is also in Italian and with smaller photos. This one is a bit more clear with larger photos... If it is any help to you. :thumb:
Thanks! My "blue book" is a copy of a copy, so any photos aren't very good. Thankfully, the Morini Owners Facebook page has better ones in the Files section, including very nice wiring diagrams.
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Installed the front signals and finished up headlight installation.
(https://thumb.ibb.co/k8N1VU/Morini_headlight_and_signals_001.jpg) (https://ibb.co/k8N1VU)
Installed the new front brake light switch along with the original brake cable barrel that activates it. The switch is made by Magura and came with new terminals and the rubber boot.
(https://thumb.ibb.co/h9HeH9/Morini_headlight_and_signals_004.jpg) (https://ibb.co/h9HeH9)
Roughed out a mounting bracket for the rear signals. Early 3 1/2s had no tabs on the frame to mount signals, so this is my solution.
(https://thumb.ibb.co/hynqPp/Morini_headlight_and_signals_006.jpg) (https://ibb.co/hynqPp)
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Installed the breaher hose...
(https://thumb.ibb.co/cB89bp/Morini_breather.jpg) (https://ibb.co/cB89bp)
while the paint on the bracket cured.
(https://thumb.ibb.co/ecUhwp/Morini_signal_bracket_1.jpg) (https://ibb.co/ecUhwp)
Signals done.
(https://thumb.ibb.co/gfApbp/Morini_signal_bracket_2.jpg) (https://ibb.co/gfApbp)
Bracket mounts in under the taillight bracket like so.
(https://thumb.ibb.co/inP499/Morini_signal_bracket_3.jpg) (https://ibb.co/inP499)
On to the exhaust finally. Rear/left head pipe in place, muffler fitted to position it correctly.
(https://thumb.ibb.co/khND2U/Morini_exhaust_1.jpg) (https://ibb.co/khND2U)
Test fitting the heat shield to see if it clears the kickstart lever. It does.
(https://thumb.ibb.co/bEV0hU/Morini_exhaust_2.jpg) (https://ibb.co/bEV0hU)
(https://thumb.ibb.co/gJjRNU/Morini_exhaust_3.jpg) (https://ibb.co/gJjRNU)
Preparing to install the front/right headpipe. Stuck the gasket to the head with a little RTV, applied copper anti-seize to the threads.
(https://thumb.ibb.co/ndtmNU/Morini_exhaust_4.jpg) (https://ibb.co/ndtmNU)
The half-rings are stuck in place with RTV and exhaust nuts threads coated with copper anti-seize as well.
(https://thumb.ibb.co/imdaGp/Morini_exhaust_5.jpg) (https://ibb.co/imdaGp)
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Right headpipe must have been from a different bike - one with mufflers that had a 35 mm inner diameter. These mufflers are only 32 mm i.d., so I needed to remove a brazed on sleeve in order for the right muffler to go on.
(https://thumb.ibb.co/iDPJ2U/Morini_3_5_exhaust_and_intake_006.jpg) (https://ibb.co/iDPJ2U)
Finally got the entire exhaust on.
(https://thumb.ibb.co/iiKkhU/Morini_3_5_exhaust_and_intake_001.jpg) (https://ibb.co/iiKkhU)
To finish out the evening, I worked on a few miscellaneous items. Installed both brake cable guides...
(https://thumb.ibb.co/hpbLGp/Morini_3_5_exhaust_and_intake_002.jpg) (https://ibb.co/hpbLGp) (https://thumb.ibb.co/i89U99/Morini_3_5_exhaust_and_intake_003.jpg) (https://ibb.co/i89U99)
...found yet another electric petcock in my stash and combined the best parts to make one working petcock.
(https://thumb.ibb.co/jaEU99/Morini_3_5_exhaust_and_intake_004.jpg) (https://ibb.co/jaEU99)
Started working on locking the exhaust manifolds in place now that I've figured out (and marked) their correct position.
(https://thumb.ibb.co/fus5hU/Morini_3_5_exhaust_and_intake_005.jpg) (https://ibb.co/fus5hU)
Just waiting on the expensive Loctite I ordered to arrive, then I can finish this up.
(https://thumb.ibb.co/dtVrNU/Morini_3_5_exhaust_and_intake_007.jpg) (https://ibb.co/dtVrNU)
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While I'm waiting on the Loctite to arrive, I worked on the side covers. Left on fits okay. Need some speed nuts to hold the badge on though.
(https://thumb.ibb.co/cWd6p9/V7_Sport_Morini_003.jpg) (https://ibb.co/cWd6p9)
The right one is a fiberglass reproduction from NLM. It should have had the badge holes drilled and the mounting holes on top enlarged before it was painted, but they weren't. :sad:
(https://thumb.ibb.co/mPpqGp/V7_Sport_Morini_004.jpg) (https://ibb.co/mPpqGp)
So, I very carefully enlarged the top holes, but the fiberglass and paint are very fragile and it chipped around one hole. :sad: Masked off the side and marked where to drill the holes for the badge's mounting pins.
(https://thumb.ibb.co/cZovhU/V7_Sport_Morini_005.jpg) (https://ibb.co/cZovhU)
I hope Mark has some touch-up paint.
(https://thumb.ibb.co/cVwRp9/V7_Sport_Morini_006.jpg) (https://ibb.co/cVwRp9)
At least both are them are done now, other than the speed nuts.
(https://thumb.ibb.co/hpHcwp/V7_Sport_Morini_007.jpg) (https://ibb.co/hpHcwp)
(https://thumb.ibb.co/hH3Hwp/V7_Sport_Morini_008.jpg) (https://ibb.co/hH3Hwp)
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Hi Charlie
For red touch up paint take the side panel to a cosmetics counter in a drug store and ask one of the ladies to match a nail polish to it. Nail polish builds much thicker than paint and it dries very hard. My painter gave me this tip when I asked for red touch up for the LeMans and my V7 Sport.
The red on the Le Mans is very, very close to the red on my 78 Moto Morini, I had the paint chip around the top holes and the nail polish works great.
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Hi Charlie
For red touch up paint take the side panel to a cosmetics counter in a drug store and ask one of the ladies to match a nail polish to it. Nail polish builds much thicker than paint and it dries very hard. My painter gave me this tip when I asked for red touch up for the LeMans and my V7 Sport.
The red on the Le Mans is very, very close to the red on my 78 Moto Morini, I had the paint ship around the top holes and the nail polish works great.
The owner may have some touch-up paint, so I'll let him take care of it.
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Installed the badges with new speed nuts.
(https://thumb.ibb.co/bDU4E9/Morini_004.jpg) (https://ibb.co/bDU4E9)
The "no load" flasher worked fine for a while, then it started acting weird.
(https://thumb.ibb.co/e76jE9/Morini_003.jpg) (https://ibb.co/e76jE9)
Replaced it with an electro-mechanical unit from NAPA
(https://thumb.ibb.co/cZ7VnU/Morini_005.jpg) (https://ibb.co/cZ7VnU)
Loctited the manifolds into place, then reassembled the carbs, air box boots, etc. Started the "plumbing".
(https://thumb.ibb.co/jT50nU/Morini_001.jpg) (https://ibb.co/jT50nU)
(https://thumb.ibb.co/iQtLnU/Morini_002.jpg) (https://ibb.co/iQtLnU)
Time for the tank. Gas cap was first. A little paint needed to be removed in the "forks" then it went right on.
(https://thumb.ibb.co/kBSru9/Morini_006.jpg) (https://ibb.co/kBSru9)
The underside of the tank is as nicely finished as the top side. Most painters just leave it unfinished and rough. installing the petcocks.
(https://thumb.ibb.co/eRXPE9/Morini_007.jpg) (https://ibb.co/eRXPE9)
Test fitting the tank.
(https://thumb.ibb.co/meJ9gp/Morini_008.jpg) (https://ibb.co/meJ9gp)
(https://thumb.ibb.co/mhOLnU/Morini_009.jpg) (https://ibb.co/mhOLnU)
Continuing the plumbing - breather hoses and fuel lines.
(https://thumb.ibb.co/cFSfnU/Morini_010.jpg) (https://ibb.co/cFSfnU)
(https://thumb.ibb.co/fjRUgp/Morini_011.jpg) (https://ibb.co/fjRUgp)
Ended the rocker breather hoses behind the left side cover.
(https://thumb.ibb.co/id39gp/Morini_012.jpg) (https://ibb.co/id39gp)
Put the sidecovers and seat on to see how it looked.
(https://thumb.ibb.co/mmP4E9/Morini_013.jpg) (https://ibb.co/mmP4E9)
(https://thumb.ibb.co/bTkY7U/Morini_014.jpg) (https://ibb.co/bTkY7U)
(https://thumb.ibb.co/mGiLnU/Morini_015.jpg) (https://ibb.co/mGiLnU)
(https://thumb.ibb.co/dxLY7U/Morini_016.jpg) (https://ibb.co/dxLY7U)
The mounting pins are broken off of the tank badges. Need to figure out how best to mount them.
(https://thumb.ibb.co/evDmSU/Morini_017.jpg) (https://ibb.co/evDmSU)
Quitting time...
(https://thumb.ibb.co/jD7ru9/Morini_018.jpg) (https://ibb.co/jD7ru9)
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Sprayed a little adhesive onto the foam and stuck it in place.
(https://thumb.ibb.co/hY956p/Morini_details_001.jpg) (https://ibb.co/hY956p)
Gripping!
(https://thumb.ibb.co/eF6k6p/Morini_details_002.jpg) (https://ibb.co/eF6k6p)
(https://thumb.ibb.co/dKJbCU/Morini_details_003.jpg) (https://ibb.co/dKJbCU)
Still need a battery strap.
(https://thumb.ibb.co/kfTyRp/Morini_details_004.jpg) (https://ibb.co/kfTyRp)
And this is just a temporary tank strap.
(https://thumb.ibb.co/f6mUXU/Morini_details_005.jpg) (https://ibb.co/f6mUXU)
Temporarily installed the old plug wires to check spark - nice blue spark! :azn:
(https://thumb.ibb.co/hoTXmp/Morini_details_006.jpg) (https://ibb.co/hoTXmp)
Marked off the position the tank badges would be if they still had pins.
(https://thumb.ibb.co/cA0Cmp/Morini_details_007.jpg) (https://ibb.co/cA0Cmp)
(https://thumb.ibb.co/kJRk6p/Morini_details_008.jpg) (https://ibb.co/kJRk6p)
Used 3M Scotch-Mount Molding Tape to affix the badges.
(https://thumb.ibb.co/mSBk6p/Morini_details_009.jpg) (https://ibb.co/mSBk6p)
(https://thumb.ibb.co/cDA1e9/Morini_details_010.jpg) (https://ibb.co/cDA1e9)
Stuck my "test ride mirror" on to see how it looks.
(https://thumb.ibb.co/eZNEz9/Morini_details_011.jpg) (https://ibb.co/eZNEz9)
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:thumb:
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Charlie - just catching up on the progress here. Really beautiful job!
Ted
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Plug wire terminals and boots arrived on Saturday.
(https://thumb.ibb.co/e36ePK/Morini_stuff_001.jpg) (https://ibb.co/e36ePK)
Assembled the wires and installed.
(https://thumb.ibb.co/egi4rz/Morini_stuff_003.jpg) (https://ibb.co/egi4rz)
This simple, relatively inexpensive crimp tool does a good job.
(https://thumb.ibb.co/iNfboe/Morini_stuff_004.jpg) (https://ibb.co/iNfboe)
Off of Lift #2 for the first time...
(https://thumb.ibb.co/gN4fEK/Morini_stuff_005.jpg) (https://ibb.co/gN4fEK)
...and onto Lift #3 for tuning.
(https://thumb.ibb.co/fj9fEK/Morini_stuff_006.jpg) (https://ibb.co/fj9fEK)
Checking the timing. It was off just a little, easily corrected.
(https://thumb.ibb.co/bQ4DZK/Morini_stuff_007.jpg) (https://ibb.co/bQ4DZK)
It's alive!!! https://youtu.be/9kjEhqLSigw
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Sounds and looks fantastic! Thanks for sharing this, Charlie. Awesome job.
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Another video, shot outside. You can actually hear the engine instead of the lift rattling.
https://youtu.be/RtavBzjwMWE
Tachometer isn't working, gotta' figure out why.
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:thumb:
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Charlie,
I'm curious which Loctite product you selected for the manifolds? I thought that was an interesting problem and wondered what your solution would be. I have had some experiences with the no load flashers that relate to rather slight fluctuations in input voltage, less than a volt, causing them to sort of get lost for a time and then if power is removed and reapplied they return to normal mode. I change them to exactly what you chose.
Brian
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Charlie,
I'm curious which Loctite product you selected for the manifolds? I thought that was an interesting problem and wondered what your solution would be. I have had some experiences with the no load flashers that relate to rather slight fluctuations in input voltage, less than a volt, causing them to sort of get lost for a time and then if power is removed and reapplied they return to normal mode. I change them to exactly what you chose.
Brian
I chose Loctite 272.
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:thumb:
Looks and sounds wonderful
Great Job
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Some outside shots.
(https://thumb.ibb.co/drUbpK/Morini_outside_1_002.jpg) (https://ibb.co/drUbpK)
(https://thumb.ibb.co/dyey3e/Morini_outside_1_003.jpg) (https://ibb.co/dyey3e)
(https://thumb.ibb.co/cNEy3e/Morini_outside_1_004.jpg) (https://ibb.co/cNEy3e)
(https://thumb.ibb.co/czELGz/Morini_outside_1_005.jpg) (https://ibb.co/czELGz)
(https://thumb.ibb.co/kkfGpK/Morini_outside_1_006.jpg) (https://ibb.co/kkfGpK)
(https://thumb.ibb.co/jyS7wz/Morini_outside_1_007.jpg) (https://ibb.co/jyS7wz)
(https://thumb.ibb.co/jXhU9K/Morini_outside_1_008.jpg) (https://ibb.co/jXhU9K)
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That looks wonderful Charlie! Well done!
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beautiful work as always :bow: :bow: :bow:
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WOW!! So good!
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It's a beautiful thing! I would expect nothing less.... Thanks for sharing another great build, Charlie!
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The owner sent me a "care package" with a known working tach, untested voltage regulator, a steering damper that has a "dead spot" the same as the original...
(https://thumb.ibb.co/bNAVPU/Shop-misc-002.jpg) (https://ibb.co/bNAVPU)
...and the shift lever we (finally!) found on ebay.
(https://thumb.ibb.co/kV6yB9/Shop-misc-003.jpg) (https://ibb.co/kV6yB9)
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Been concentrating on other projects. I did install the right engine cover and shift pedal today though.
(https://thumb.ibb.co/m2tNVq/Paul-s-V7-Sport-engine-1-014.jpg) (https://ibb.co/m2tNVq)
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Details winding down this project.
Put the little cover on the fuse block.
(https://thumb.ibb.co/j7d7q0/Morini-3-1-2-Sport-misc-002.jpg) (https://ibb.co/j7d7q0)
Refilled the steering damper and installed it.
(https://thumb.ibb.co/hwE2OL/Morini-3-1-2-Sport-misc-003.jpg) (https://ibb.co/hwE2OL)
Shortened the crankcase breather hose.
(https://thumb.ibb.co/g34DV0/Morini-3-1-2-Sport-misc-004.jpg) (https://ibb.co/g34DV0)
Finally got the tach working... sort of. It goes up with engine revs, but is very slow coming back down. The engine isn't running in this photo, when I pecked on the glass the needle slowly dropped down. The customer has a friend that rebuilds gauges, so he'll take it from here.
(https://thumb.ibb.co/immGiL/Morini-3-1-2-Sport-misc-006.jpg) (https://ibb.co/immGiL)
The battery I installed previously was a dud from the start, I now believe. It would lose charge overnight making me think the voltage regulator was at fault. Last night I removed it from the bike, charged to 13.2 volts and when checked this morning it was down to 11.10 volts. So, I went over to Battery Mart HQ in Winchester, VA today and exchanged it for a Motobatt MB12U.
(https://thumb.ibb.co/h6UK3L/Shop-misc-001.jpg) (https://ibb.co/h6UK3L)
The Motobatt is more amp/hrs. and is physically larger - it fits into the battery tray perfectly.
(https://thumb.ibb.co/j9ARiL/Shop-misc-002.jpg) (https://ibb.co/j9ARiL)
The "to do" is down to just a few items now.
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(https://thumb.ibb.co/jWcqCf/Morini-3-1-2-Sport-done-001.jpg) (https://ibb.co/jWcqCf)
Rode it for the first time today. Since it's not "legal", only two miles around the neighborhood. Feels strong, shifts a little notchy, brakes are okay. Both will improve with more miles and break-in. The clutch works perfectly - no grabbing or dragging - very happy with that since it isn't always the case. There's a little stumble just off of idle under load, so it might need a pilot jet change. Other than a little detailing, I'm calling this one "finished". :azn:
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Looks great, well done! :bow: :bow: :bow:
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She sure is pretty!
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:thumb: :thumb: :thumb:
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Two Morini 350s, separated by 11 years. Original: timeless, classic good looks, K2: '80s swoopiness that looks dated, but still attractive IMO.
(https://thumb.ibb.co/eAoza0/Morini-3-1-2-final-1-001.jpg) (https://ibb.co/eAoza0) (https://thumb.ibb.co/h6Vqhf/Morini-3-1-2-final-1-002.jpg) (https://ibb.co/h6Vqhf) (https://thumb.ibb.co/kgui2f/Morini-3-1-2-final-1-003.jpg) (https://ibb.co/kgui2f) (https://thumb.ibb.co/b8rKa0/Morini-3-1-2-final-1-004.jpg) (https://ibb.co/b8rKa0)
Second test ride today. I swapped in a set of 55 pilot jets in place of the 50s and that totally eliminated the stumbling/bogging off of idle. Unfortunately, on my second go through the 'hood, it suddenly started running on just one cylinder. :sad: Limped it back to the shop and set about troubleshooting. Turned out to be the original pickup had failed. In the photo you can see a bump in the black section. I think an important component failed just under that. :wink:
(https://thumb.ibb.co/d90qhf/Morini-3-1-2-final-1-005.jpg) (https://ibb.co/d90qhf)
All was not lost however. A while back the owner bought a box of spare bits, which included two pickups and two transducers.
(https://thumb.ibb.co/nvJXv0/Morini-3-1-2-final-1-019.jpg) (https://ibb.co/nvJXv0)
I chose the best looking of the two and installed it. Spark on both cylinders again! :grin:
(https://thumb.ibb.co/mTcxTL/Morini-3-1-2-final-1-020.jpg) (https://ibb.co/mTcxTL)
I needed to set the timing again of course, and while I was at it, I checked carb sync. since I'd been adjusting idle speed.
(https://thumb.ibb.co/eo7WoL/Morini-3-1-2-final-1-021.jpg) (https://ibb.co/eo7WoL)
The third (and final?) test ride went perfectly. Running better than ever, pulling strong, brakes are starting to bed in again. Four miles total. I'd like to put more on it, but really can't unless it's insured and registered by the owner.
(https://thumb.ibb.co/grtFF0/Morini-speedo-004.jpg) (https://ibb.co/grtFF0)
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I dig the "swoopy" look of the K2. My bud who is doing the major work on my lemans has a mint one. ( His family had a Morini, Guzzi, Triumph, Ducati Dealership ) .
What's the performance difference between the two ( if any) ?
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I dig the "swoopy" look of the K2. My bud who is doing the major work on my lemans has a mint one. ( His family had a Morini, Guzzi, Triumph, Ducati Dealership ) .
What's the performance difference between the two ( if any) ?
It's hard to draw any conclusion about performance differences based on only four miles of riding the 3 1/2 Sport. It seems peppier, but is geared lower and weighs a bit less. If/when the bike is legal and I can put more miles on it, then I'll be able to get a better idea.
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I think we are going to need a write up. I can't recall seeing a new vs old morini 3 1/2 comparison test before.
I think you could get away without doing any 1/4 mile testing. :azn:
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If the owner of the 3 1/2 Sport sends me a tag and insurance card, I might be up for a "comparison test". :azn:
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What’s your impression of the Sport dual sided front brake? How does it compare to the V7 Sport brake? Period tests where very positive I wonder how it would rate today.
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What’s your impression of the Sport dual sided front brake? How does it compare to the V7 Sport brake? Period tests where very positive I wonder how it would rate today.
The front brake is still bedding in, so until it is, any impression wouldn't be valid.
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Didn't check the forum for a while. I think I have a pair of original steel sidecovers that I could sell, if you perhaps don't like fiberglass.
On my Morinis, I just used a tiny maintenance free 4Ah 20€ scooter battery, and it proved faultless for four years.
These early Morinis are such beautiful bikes, I don't think they could get more classic 70's.
The 80's model had a slightly different frame (bent around the front cylinder, gets closer to the engine - you can see the front mount is shorter). Supposedly a little better, but probably nothing a normal rider would ever notice (the oldest Morini twins handled very well anyway). The 70's Sport models had (compared to standard/strada/GT) a more aggressive camshaft, high compression pistons and slightly different jetting, besides clip on bars and a different seat (not much else). The 80's models had (as far as I know) the same engine as the standard model, the only difference was a more aggressive position with the low bars and styling. That said, the standard engine is neat too, perhaps slightly more torque compared to peak power, but not really that noticeable (it's still just a 350, they all made around 100hp/litre or more, really decent for the 70's - the new V7 and many other completely modern retro bikes do not come close).
I rode a Benelli Tornado 650 with the same (grimeca?) front drum (double sided single leading shoe) as the first series Morini Sport. I also own a '71 V7 Special with the double sided 2LS drum like the V7 Sport. As far as I'm concerned, both stop alright. The Morini would probably stop a bit better, since it's a very light bike (I think only around 150kg, the Tornado at least 1/4 more, the Guzzi even more). Overall, drums aren't that bad, problems happen with continuous braking (worse cooling). Those Grimeca discs Morini used were quite odd - hard chromed and grinded surface of a steel disc. Supposedly great braking surface until the chrome wore off (but I think it has around 70 HRc, really hard and durable - most commonly, it flaked off due to rust and age).
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Beautiful job Charlie! That thing is :boozing:
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I just saw this thread while surfing the web. Charles did an outstanding job on the bike and was a pleasure to work with. If not for him, the bike would have never gotten done. Everyone who sees the bike says it's beautiful, including my wife. I told her the next one is hers. I've been cleaning up parts on Morini #2 to get ready to take down to his shop. I just received some black powdercoat media and I hope to have the frame done in a week or 2. It sounds like I need to polish up some engine parts so everyone is happy :-). Restoring this bike to original specs was always the plan but during the build I was just happy that Charles and I could find all the needed items. It was a bit of a scavenger hunt. This bike had been stored in a locker for 26 years and didn't come with any paperwork. I just received the VT registration and tags and notified my insurance company for coverage. This is my first motorcycle so I just signed up for a riding course before I apply for a license. I can't wait to get it on the road.
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:thumb: :thumb:
Looking forward to #2. I need a break from Guzzi, Guzzi, Guzzi, Guzzi, Guzzi... :grin:
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:thumb: :thumb:
Looking forward to #2. I need a break from Guzzi, Guzzi, Guzzi, Guzzi, Guzzi... :grin:
Me too!!
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This lovely 3 1/2 Sport is now for sale. Contact me if interested.