beyond the carb/petcock stuff, though a check of the petcock function and float needle seats is never a bad thing...because it's easy.
Just replacing stuff without knowing what needs fixing is expensive and is merely gambling. If you just like new stuff for future reliability, it's best to do one at a time and see if the bike develops an issue from it. Because...
-Often problems arise from the last thing you did before trouble began whatever that was.
-look for wire chafe toward the sensors and any ignition components. Connections too.
-I can't recall the differences in ignition timing for your bike? but while you're there, look for hangups at the timing centrifigal advance if you still have that
-"...valves and timing seem okay" SEEM? is this the last thing you did before trouble?
- Cam chain tensioner and check valve timing...at the cams.
-Check the spark plug leads
-Check the oil for gasoline smell (=bad petcock)
Just replacing stuff without knowing what needs fixing is expensive and is merely gambling. If you just like new stuff for future reliability, it's best to do one at a time and see if the bike develops an issue from it. Because...
-Often problems arise from the last thing you did before trouble began whatever that was.
-look for wire chafe toward the sensors and any ignition components. Connections too.
-I can't recall the differences in ignition timing for your bike? but while you're there, look for hangups at the timing centrifigal advance if you still have that
-"...valves and timing seem okay" SEEM? is this the last thing you did before trouble?
- Cam chain tensioner and check valve timing...at the cams.
-Check the spark plug leads
-Check the oil for gasoline smell (=bad petcock)
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