medicbaldwin
02-13-2006, 03:30 AM
I know this thread has been posted before, but I can't find it and I do not know how to search for postings.
I just recently had my '03 400ex bored to a 416. I have a complete big gun exhaust, big gun cdi, airbox eliminator and dyno jet kit. I have a dyno 170 main with the needle clip on #3. the bike runs great, but at slower speeds or with a load on the low end it knocks and pings. Sounds a little scary and I really don't want to keep running it this way.
Any suggestions on idle jet sizes or do i need to adjust my air/fuel screw?
thanks-
medicb
I just recently had my '03 400ex bored to a 416. I have a complete big gun exhaust, big gun cdi, airbox eliminator and dyno jet kit. I have a dyno 170 main with the needle clip on #3. the bike runs great, but at slower speeds or with a load on the low end it knocks and pings. Sounds a little scary and I really don't want to keep running it this way.
Any suggestions on idle jet sizes or do i need to adjust my air/fuel screw?
thanks-
medicb