Originally Posted by TobyG
I checked Valve clearences today.
Inlet: 0.05 and 0.15
Exhaust: 0.26 and 0.25 (the 0.25 one, that is with using a lot of force and a good amount of imagination, it's more 0.24 than 0.25)
(as a reminder: specs for inlet valves are 0.03 to 0.11, exhaust ones are 0.25 to 0.33
So, should I only change the shim of the 0.15 one or should I also change any others, especially regarding the 0.25ish one?
I'd change the shims on both exhaust valves to be on the wide end of the clearance range while you're in there. They'll only get tighter as you put more miles on the bike. I'm wondering why the intakes are so far off, maybe some carbon on the seat of one of them? In any case, the intakes won't wear down the valve seats the way the exhaust side will, so anywhere in the spec is probably okay.