afunk

Member
Oct 27, 2003
8
0
I bought a 2004 yz 250 and bike runs rich "foul plugs fast", runnning mixture at 32to1..help if any suugestions plz !!!!!!!!!
 

agitt73

~SPONSOR~
May 11, 2000
1,078
0
jetting must be wrong im not sure what the jetting is on those bikes
also check gear oil if its getting low with no leaks it could be a crank
seal
 

JohnScott

~SPONSOR~
May 22, 2001
96
0
Do a search on jetting - the premix ratio is not your problem. A recent thread adressed jetting issues with this bike - or a 2003 - which shouldn't be far off. Filter what you read though, one of the threads was full of crap.

John
 
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