I did a major overhaul on my '79 engine this winter. Completely apart, split the cases, pulled the tranny shafts.
Replaced every gasket, seal, o-ring and crush washer in it. Hot-tanked the cases, had the cylinders checked and honed (they were fine) installed new rings, a new front cam chain guide, new cam chain, and a new clutch. Head checked for flatness, glass-beaded and a valve job done. Dropped two teeth to a 32 on the rear and put a new chain on it.
Stripped the carbs and ran them through a sonic cleaner. Installed new gaskets, float valves and seats (I'd already done shaft seals). Put everything back together and eyeballed the sync by looking at the gap under the butterflies.
Got it all reassembled and stuffed back in the bike then dithered for a day about starting it. I couldn't think of anything I'd missed, but starting a new engine like that always makes me nervous just in case. I expected to have to diddle with the carbs, cam chain adjuster and valve gaps, I'd just eyeballed the ignition timing and I wasn't sure how the new clutch was going to work, having gone from a 7-disc to an 8-disc clutch.
Sumbitch started right up, idled down nicely and just sat there and purred. No big smoke, no odd noises, nothing. Just ran.
The timing was advanced maybe 1/8" past the mark at full advance. Cam chain adjuster barely moved, did loosen it up just a touch. Put the yardstick carb syncher on it, and tweaked the sync screw maybe 1/32nd of a turn. Static adjustment on the clutch appears to be spot on.
Huh. Believe I'll buy a lottery ticket while I'm waiting for the snow to clear enough to go for a putt.
Once I get a good 10-15 mile run on it, I'll retorque things and I think we're good for another riding season.
Replaced every gasket, seal, o-ring and crush washer in it. Hot-tanked the cases, had the cylinders checked and honed (they were fine) installed new rings, a new front cam chain guide, new cam chain, and a new clutch. Head checked for flatness, glass-beaded and a valve job done. Dropped two teeth to a 32 on the rear and put a new chain on it.
Stripped the carbs and ran them through a sonic cleaner. Installed new gaskets, float valves and seats (I'd already done shaft seals). Put everything back together and eyeballed the sync by looking at the gap under the butterflies.
Got it all reassembled and stuffed back in the bike then dithered for a day about starting it. I couldn't think of anything I'd missed, but starting a new engine like that always makes me nervous just in case. I expected to have to diddle with the carbs, cam chain adjuster and valve gaps, I'd just eyeballed the ignition timing and I wasn't sure how the new clutch was going to work, having gone from a 7-disc to an 8-disc clutch.
Sumbitch started right up, idled down nicely and just sat there and purred. No big smoke, no odd noises, nothing. Just ran.
The timing was advanced maybe 1/8" past the mark at full advance. Cam chain adjuster barely moved, did loosen it up just a touch. Put the yardstick carb syncher on it, and tweaked the sync screw maybe 1/32nd of a turn. Static adjustment on the clutch appears to be spot on.
Huh. Believe I'll buy a lottery ticket while I'm waiting for the snow to clear enough to go for a putt.
Once I get a good 10-15 mile run on it, I'll retorque things and I think we're good for another riding season.
there find better now? good job, enjoy getting it right
