well im looking at putting just a 200 top end on my vx125. if i was going to go ahead will i be needing to change the valve clearances and cam chain timing? any help is much appreciated
nope. the cog at the top near the valves has to match the cog at the bottom. lines need to match up. timing marks if you like. im not sure on valve clearances but i doubt it a upjet to 118 wont go a miss either :bird:
