View Full Version : stock jet
Bdav450
10-04-2009, 09:31 AM
does anbody know what the size of the stock jet is in a 08 yfz450 and i also live in louisiana and we are below sea level so would my new jet be about two sizes bigger
ae13291
10-04-2009, 11:15 PM
it should be a 42 pilot jet. thats what my 04 had and my buddys 07 yfz had. and the main jet should be a 158 hex style main jets and 21 series pilot jets
Bdav450
10-05-2009, 07:33 AM
thanks man
yfzrider690
10-05-2009, 12:16 PM
He's right on the 42 pilot but the stock main is a 155.
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