Reelthing wrote on 05/21/08 at 14:47:51:justin_o_guy2 wrote on 05/19/08 at 22:02:53:The valves should be quieter when the engine is hot, since the gap is diminished with the longer valve stems.
Alright! this could be as much fun as a motor oil or octane debate!
On a valve train like this one the gap widens as it gets hotter - the valve expands enough that it will no longer go into the seat as far this causes the gap to expand
On valve trains with push rods and solid lifters the gap shrinks as it gets hotter as the push rod lengthens enough to over ride any valve stem heigth reduction
Hey honestly pop'd a wheelie on the '02 yesterday leaving a stop sign
Oh, but let's remember that the rocker arms get longer, the adjuster screws get longer, the camshaft gets fatter, the head gets bigger, the cylinder gets longer, the cam chain gets looser, the primary gears get fatter, the crankshaft grows bigger and the connecting rods become longer....plus the cases get wider, the drive pulleys get bigger and the drive belt gets longer...and eventually the whole bike is huge...
...that explains why you were able to pop a wheelie too