View Full Version : Hard Starting
Stein2088
05-16-2006, 09:46 AM
i recently purchased an 01 400EX and it has a hard time starting when its cold... (just the engine) even when its fairly warm or cold outside it has a hard time, but once she's warmed up she starts rite away... any ideas???
Thanks Nick
-copyguy-
05-16-2006, 10:29 AM
a lot of people on here recommend going up to a size 42 pilot jet.
see here for the article on how to do it:
http://www.atvriders.com/articles/pilotjet.html
I picked up a new pilot jet for mine but haven't put it in yet.
good luck!
Grim Reefer
05-16-2006, 10:34 AM
My 00 is cold blooded also. If its slightly cool outside it takes a bit to get warmed up. Go up one size on pilot jet and that should help.
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