"Super" Lario/LM1 SB clone build w/Bubs music

[kevdog3019]

"Sucked in"??? Don't see how in a gravity fed, non-fuel pumped system. Something about this Lario that atypical? ???

Ok, it leaked in. What's thinner air or gas?  Lots of air in the lines. Came in through the banjo, rose up, fuel didn't like forcing its way down so well. I don't have an extreme downward run or probably could have. After the fix I see full gas lines again, no air. Will know for certain when I run her.

Edit:  Rain stopped; good run in; ran super, no sputter; lines are full of fuel ONLY.  Moral of the story: On a gravity fed system it's pertinent to have all hook-ups locked down.  Just because there's no fuel leaking out doesn't mean there's no air getting in.  Thanks again Father Guzzi for getting in the back of my head and staying there.  Also glad I had clear fuel lines.  Precisely why.

[wrbix]

No.....with petcocks open pressure in lines/banjos/all way to carbs should have the hydrostatic positive pressure of the distance from top of fuel level in tank to that level - sure you don't have a faulty gas cap vent?

[kevdog3019]

Nah, no vapor lock on the cap. If air keeps making its way in from the lowest point, gas has a harder time making its way down. All I know is once I stopped the air intrusion it filled with fuel (no gaps) and the bike runs perfectly again. That's all I did.
Vroooooom!!

[kevdog3019]

Finally picked up my stock Lario today. Will get it on the road while my other is having its weep fixed.

[kevdog3019]

Have had some saddle time with the stock bike and it runs very well. Differences are staggering in the two however as this engine feels much more sedate and small in comparison and the front forks/brakes/lowered stance upgrades are WORLDS apart. I'm rather shocked how "insecure" I now feel on the stock bike. Biggest thing are these flimsy forks. Good to re-visit. Can't wait to get the cafe back together starting today.

[Chuck in Indiana]

Kev, as much as you rag on the stock Lario front end, I wonder if there isn't something wrong with it? Maybe steering head bearings or swing arm bearings? Mine is certainly no Ohlins bike, but it's uh.. ok. I pulled the front end apart last week and cleaned/lubed/adjusted the steering head bearings and it's rock solid again. I ran up to a bike show in Northern Indiana today, and I could set the throttle lock and run hands off at any speed. It's good enough that I'm going to spend the big bux and put FAC dampers on it.

[kevdog3019]

Kev, as much as you rag on the stock Lario front end, I wonder if there isn't something wrong with it? Maybe steering head bearings or swing arm bearings? Mine is certainly no Ohlins bike, but it's uh.. ok. I pulled the front end apart last week and cleaned/lubed/adjusted the steering head bearings and it's rock solid again. I ran up to a bike show in Northern Indiana today, and I could set the throttle lock and run hands off at any speed. It's good enough that I'm going to spend the big bux and put FAC dampers on it.

Nah,simply put, these things aren't that solidly made. The Marzz are 35mm also and they are solid in static flexing whereas these are like toothpicks how much they flex. There's got to be big difference in road manners due to this.  I'm not a believer and wouldn't sink a dime into them from my experience. But... we differ on what we think of the stock brakes also.  Adequate... yep. I'm spoiled now I'll admit.

[Triple Jim]

I notice you have a fork brace on your modified one, and none on the stock one.  Not fair.   :)

[Chuck in Indiana]

I notice you have a fork brace on your modified one, and none on the stock one.  Not fair.   :)

True. I modded my "fender mount" into a fork brace. It helps.

[kevdog3019]

I notice you have a fork brace on your modified one, and none on the stock one.  Not fair.   :)

Jim,
     The fender mount acts as a "fork brace" to a slight degree on stock Larios. There was nothing in the way of a fender on my cafe for a season so I added the brace. Yes, better than the stock brace no doubt, but my original study on static testing was with no brace and flexion of the inner/outer tubes when fore/aft pressure was applied. Worlds apart, and the stock had the advantage with the fender brace vs. nothing on the Marzz forks. Bottom line again is solidness of design and make-up. There's only so much a brace will do. The dampening I can live with on them. I'm a pretty forgiving rider, but the difference is staggering and I've found my proof as to why.

[Chuck in Indiana]

The fender mount acts as a "fork brace" to a slight degree on stock Larios.

Only if you bin the rubber grommets and make delrin bushings..

[kevdog3019]

Exactly one week down for the seal replacement on the rear main shaft of the transmission. Got it home and found it wasn't charging. Thanks to the good folks here on WG we surmised it needed a re-flashing of the rotor with the stator. Put 12 volts through it and shazzam it came to life. One day for tear-down and one for re-build.  Guzzi shop did the nut from Hell and seal change.

[kevdog3019]

All is well that ends well; no leaks!