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Old 03-14-2009, 06:43 PM   #21
seruzawa
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Originally Posted by Kenneth_Moore View Post
Aha, it's metering the oil based on throttle opening. Amazing how they did stuff with cables and cams before chips and solenoids came along. Lunch is over; back to the shop to drill the heads off some bolts to finish the sidecover removal.
Make absolutely positively certain that the oil pump is adjusted properly or you will lose your crankshaft. Don't ask me how I know this.
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Old 03-15-2009, 09:38 AM   #22
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Make absolutely positively certain that the oil pump is adjusted properly or you will lose your crankshaft. Don't ask me how I know this.
Better yet, ditch that thing and just run premix to be safe.
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Old 03-15-2009, 11:28 AM   #23
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Better yet, ditch that thing and just run premix to be safe.
I've thought about that; I know a lot of people do. I will for sure at first; I figure it's going to have to be running for me to check the output from the pump. It's such a simple system; especially how it connects to the mainfold.
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Old 03-15-2009, 11:38 AM   #24
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And this time, they really are filthy! I've spent two full days with Gunk, brush, and hose and I'm still cleaning. But it may actually be a good thing; the bike was essentially mummified in oily crud.

The carbs turned out to be really simple. They're clean now; awaiting the rebuild parts I'll order tomorrow. I know it looks like crap, but the more I tear into it, the more intact this bike appears to be.

The only thing that has me worried is the clutch side case. It looks like the chain broke at speed and beat the crap out of the sidecover and around the front sprocket. You can see where somebody kludged (it seems to work...) a part for the clutch cable to mount on. If the cable mounts on the sidecover and not the engine case itself, I should be ok. If the cable mounts on the engine case, then I'll have to put a lot more time and money into it. I'll go look at the parts fiche and see.
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Old 03-15-2009, 12:33 PM   #25
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Ah, I can smell the carb cleaner, and the black nastiness dripping from the pipes.
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Old 03-15-2009, 04:12 PM   #26
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The bile looks pretty sound, but just for fun, grab the crankshaft ends and see if they move up and down in excess. I've restored many a Yamaha to find after I've put it all back together, the crank bearings were shot, which made me curse and thrown tools around the garage. a few 10mm wrench divots in the floor can still be seen as mute testamonty to this.
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Old 03-15-2009, 06:32 PM   #27
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The bile looks pretty sound, but just for fun, grab the crankshaft ends and see if they move up and down in excess. I've restored many a Yamaha to find after I've put it all back together, the crank bearings were shot, which made me curse and thrown tools around the garage. a few 10mm wrench divots in the floor can still be seen as mute testamonty to this.
Check your PMs.
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Old 03-16-2009, 09:11 AM   #28
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Neat project Ken, looks like its coming along well
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Old 03-16-2009, 09:31 AM   #29
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That thing sat in my garage for two years untouched. I'm glad Ken's got the time and $$ to clean it up. Sure would have been a fun ride.
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Old 03-16-2009, 09:42 AM   #30
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Almost makes me wish I had that old Bridgestone 350GTR back to wrench on.

Almost............
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