PDA

View Full Version : my Y sputters under a load


ja426ex19
06-11-2007, 10:27 PM
hey guys just lookin for a little help. i have an 05 yfz uni filter hmf slip on and jetts are the only engine mods i have. When the quad gets up to temp it start to spit sputter and back fire i have built a couple of quads hybrids and production and have never had this happen any ideas as to what it is? and yes the gas is good and the plug is brand new. thanks for the help!
250r4life
06-12-2007, 12:15 PM
dude... how you letting that POS LTR beat you? :huh
woodsrider4ever
06-12-2007, 02:32 PM
mabe the jettings off or theres something with the spark delivery system
ja426ex19
06-12-2007, 02:45 PM
had to let him win for a few laps its all staged at the monster jams.