View Full Version : main jet
03-23-2005, 09:15 AM
my bike has been running to rich. i found out today that my bike is running a 155 main jet even though the bike is standard except for the derestriction and powervalve. what is the original jet size i always thought it was 120. i have a 34mm carb.
03-23-2005, 11:00 AM
120 is the main jet for 28mm carbs, u would kill ur bike running that
try a 150 and see if things improve
03-23-2005, 01:20 PM
i have a 155 in there now with the needle on its top setting, but in 1st and 2nd if i full throttle it i get a splutter right before the powervalve kicks in.
03-23-2005, 02:09 PM
i get that, but only when the bike is warming up at about 60degrees and its the first time im going into the powerband
maybe your blade needs a clean
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