110cc pitbike

[markw43]

hey everyone new to this site i am just wondering what the valve clearance is for a chineese 110cc pitbike i have been told its 00.3 can anyone confirm this
thanks.

 

[my67xr]

hi, welcome to Miniriders
dont forget to drop by and say g'day in our Introduce Yourself thread too



it is .003" on the inlet and .004" on the exhaust

 

[markw43]

oh awesome that was a quick reply thanks for that. i only bought it the other day really cheap its at my sisters in another town havnt had a chance to look at it yet but her partner said it has really low compression is this a sign of piston and ring damage and would it still have spark if that was the case?

 

[my67xr]

if the valves are open, when they are supposed to be shut, it will give you lower compression
and it can also cause other problems later on too.


here is a video that may help, but use the clearances i posted above

[video=youtube;QJciyJRJh8Q]http://www.youtube.com/watch?v=QJciyJRJh8Q[/video]

 

[Qwerty1234]

with that said, I don't think his method of "do it up til it just touches" is quite correct. If you do that then you'll be able to get 2 or 3 sizes bigger in there and the valves will be off. In an ideal world you want to be able to get the correct feeler gauge in with a good bit of resistance, and 1 size up just barely though not smooth, and 2 sizes up shouldn't go in.