2003 Yamaha YZ 250 "piston" Questions

We need to order a new piston and rings kit for a 2001 yamaha blaster 200. Not sure how the measurements work. Tha calabrator is reading 66.35 on the piston and the jug reads 66.52. so we are not sure

2004 yamaha blaster will idle but will not take the throttle all new engine engine blew up the piston came apart locked up crank i have replaced the crank new seals new cylinder& piston kit new ...

...clean(you will need to do it a couple of times-turn the rag over & do it again).Lube the new piston just before assembly-Also pour a little oil down the main bearing oil holes & over the ...

...stated, the oil could have leaked out. There are other possible causes however: If the shock piston seal has failed, oil will blow past the piston during compression and rebound so no damping ...

...that the pads will catch on, preventing the caliper from coming off. Grab the caliper, with the piston side in your fingers, and pull on it with constant, even pressure. Now, I'm not talking 200 ...

My Power vavle 2 both of them are hitting the pistons rings on my YZ 250 2005. I just had it bored .08 over due to some damage inside the cylinder. L A Sleeve said that they usually mill the #2 power ...

I have yz250 2004, white smoke coming out the exhaust,, hard to kickstart,, piston makes some loud rattle noise,,, what would be the cause? Thanks If you have a rad on that unit you have a warped head

Piston rings Is ther a wright or wrong way for wich your rings go up on yz 250 2008 model And are they both the same. Also what is a good ratio to run fuel mixture at If the piston you are using has a

...turns at a time this will decrease the amount of fuel going into engine also replace plug and check piston rings by getting a compression tester and put it in the spark plug hole and kick it a few ...

metal in the crank case i have a 1998 yamaha yz250. the piston has exploded more or less the front side has shattered about half way up the piston and the back side has a small hole in it. when it ...