So a friend of mine decided to go buy a 2001 yz250 bike and took the guys word on how well it ran the guy had the been riding it when he got there and he said it ran great when he got it home it wouldn't start so he brought it to me to take a look at the intake boot was cracked and the gaskets on the reed spacer was leaking so all that is fixed now tried to do a leak down test and it will hold air for about 2-4 mins ie pump it up and it takes 2-4 mins to leak out all the air I did a compression test its about 155 psi the PO said he changed the pilot jet to a bigger size I'm guessing to compensate for the air leaks so I got my friend buying a new stock OE pilot the only thing done to the bike is a pro circuit pipe and silencer
Are there any common places for these to leak air I'd rather not have to pull the whole engine apart to find the leak but I think it's gonna come to that
Are there any common places for these to leak air I'd rather not have to pull the whole engine apart to find the leak but I think it's gonna come to that