Wildguzzi.com
General Category => General Discussion => Topic started by: JJ on November 24, 2020, 10:12:49 AM
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This would be fun to WAKE UP the neighborhood!!! :thumb: :cool: :smiley: :wink:
(https://i.ibb.co/5KBm0NH/Screen-Shot-2020-11-24-at-9-11-34-AM.png) (https://ibb.co/5KBm0NH)
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I restored one of them about ten years ago, long gone now but it was a fun bike to ride
(https://i.postimg.cc/3RJN2XPG/R5350-022.jpg) (https://postimg.cc/f3pMN9WW)
Same frame and engine as the RD350 that followed with the addition of reed valves, a sixth gear and a front single disc brake
(https://i.postimg.cc/Rh20rjq1/R5350-023.jpg) (https://postimg.cc/PvzHYVWN)
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There is something about THAT smell, that reminds of when life was just a whole lot simpler.
Also the smell of a model aeroplane engine or speedway bike on the old Castrol R... :azn:
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The bike I owned when I got my license was the 250 version, the YDS7. :azn:
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Geez Canuck, that is a great restoration effort.
One-a these days I dig this out again, it will need crank seals and a good going through. '84 RZ350N
Cheers,
Rob
(https://imagizer.imageshack.com/img922/6484/vngp6Y.jpg)
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Geez Canuck, that is a great restoration effort.
One-a these days I dig this out again, it will need crank seals and a good going through. '84 RZ350N
Cheers,
Rob
(https://imagizer.imageshack.com/img922/6484/vngp6Y.jpg)
That is a rocket! Very nice, I bet it sounds fantastic on full boil.
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Had one of these from *brand new*, back in the day...Blue, just like this example!
1977 Yamaha RD400...It was a good bike...6-speed and very quick for it's size.
..sometimes referred to as "The Giant Killer"...and for good reason... :wink: :thumb: :cool:
(https://i.ibb.co/7vZkgGB/Screen-Shot-2020-11-25-at-6-45-19-AM.png) (https://ibb.co/7vZkgGB)
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That is a rocket! Very nice, I bet it sounds fantastic on full boil.
It actually howls however, I would seldom twist it up there... just a ridiculous little powerhouse, for the year. Still fun to ride though.
rad__
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There's a blue '77 RD hiding from winter (w/DCT chambers), in the basement, w/a 4LS, GT500 Cafe`w/Higgspeed trombones, RS125 Aprilia, Gilera CX125. I've used Amsoil Interceptor 2 stroke oil for years. As they used to say; they go like stink. Sometimes I light a wick of pharma grade Castor to improve the shop atmosphere. R3~
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I would REALLY love to have one of these...
The 1969 - 1975 Suzuki T500 twin. Considerably different by way of behaviour compared to many two-strokes... in that this bike tends to be pretty low-reving, does not foul plugs, gets pretty darned-good gas mileage. Also, the bottom-end is hella-robust. The CCI system - Suzuki's CrankCase Injection delivers positive, pressure-fed oil to the two outboard main bearings (and by way of a routing system, to the two crankpins / bearings). The centre main is lubricated by gearbox oil... with a trough system. The kinds of mileages you can get without having to replace the bearings are very substantial. Of course, a two stroke really needs to have intact, well-functioning oil seals on the crankshaft... so you have to do two types of leakdown testing: one for crankcase pressure integrity (typically has to hold 6 or so psi for 5 mins) and then also the piston rings / cylinder / head gasket leakdown.
The is a BIG following of two-stroke twins in the UK. The Suzuki T500 is one of their favorites.
(https://i.ibb.co/yqF8b4z/20200201-135022s.jpg) (https://ibb.co/yqF8b4z)
(https://i.ibb.co/PcPs0QW/20200201-134946s.jpg) (https://ibb.co/PcPs0QW)
(https://i.ibb.co/CV5xstF/IMG-0007.jpg) (https://ibb.co/CV5xstF)
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Agreed...that is one big, beautiful 2-stroke "smoker!" :cool: :thumb: :smiley: :wink:
...and I'll bet it's a BLAST to ride fast!! :bow: :bow: :bow:
(https://i.ibb.co/L0xbHmv/Screen-Shot-2020-11-27-at-6-13-55-AM.png) (https://ibb.co/L0xbHmv)
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Just to bring back the two-stroke multi-cylinder discussion (please humour me) - this Suzuki T500 has, of course, a built-up crankshaft. That DOES make a multicylinder 2 stroke a bit of a PITA... and particularly in this case of the T500 - because the centre-section of this twin has to be "phased" correctly. Now the Yamaha RD, by comparison, has a splined centre section, but the Suzuki is NOT splined... and so you have to press it together (around the one-piece centre bearing + 2 centre-seals "element" - in a manner that the two cylinders are properly at 180 degrees apart. Many people scribe lines on the still-assembled crank-wheels and then seek to align those scribe-lines on reassembly... I'm not sure that this is accurate enough.
There are ways of pressing the centre-section together to ensure that it IS phased accurately - by using an assembly jig. Probably the best ones use a piece of pipe and guide-plates that have keyways or pins. Another way is via the attached photo... that a fellow made up for his Yamaha Banshee. A pretty over-the-top effort to do this accurately.
The effective other way to get this done is to go to an established expert with 2 stroke multi's... Apparently "Ed Toomey Designs" is one such expert with a reputation. I can't help but think that the relative infrequency with which this has to be done does not merit coming up with one's own jig. Toomey has a rep. of having good jigs.
(https://i.ibb.co/F0zfD4G/s-l1600-1.jpg) (https://ibb.co/F0zfD4G) (https://i.ibb.co/pXcmWsp/IMG-20110828-171732.jpg) (https://ibb.co/pXcmWsp)
(https://i.ibb.co/VWfhJCM/Suzuki-Posi-Force-Lubrication.jpg) (https://ibb.co/VWfhJCM)
(https://i.ibb.co/60jR18Q/Phase-Measurement-1.jpg) (https://ibb.co/60jR18Q)
(https://i.ibb.co/vXWLYCm/Phase-Measurement-2.jpg) (https://ibb.co/vXWLYCm)
(https://i.ibb.co/60jR18Q/Phase-Measurement-1.jpg)[/url]
(https://i.ibb.co/4mHKsdv/Ed-Toomey.jpg) (https://ibb.co/4mHKsdv)
(https://i.ibb.co/XsnLwnH/101019664-777147249487604-6702474088075493376-n.jpg) (https://ibb.co/XsnLwnH)
(https://i.ibb.co/pXcmWsp/IMG-20110828-171732.jpg) (https://ibb.co/pXcmWsp)
(https://i.ibb.co/qCM20yC/sectional-view-of-T500-crank.jpg) (https://ibb.co/qCM20yC)
(https://i.ibb.co/192v6CV/Titan-Crankshaft-Assembly.jpg) (https://ibb.co/192v6CV)
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Huzo says 'Castrol R'! - and yanks me back by the ears. One of my earlier 2 strokes was a Bultaco. '61, 2? Black/silver. I used to heat the muffler in tri sodium phosphate to get rid of the oil blocking the exhaust flow. And then there was rust. R3~