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View Full Version : Problem with jetting in friends raptor..



Evil_Apoc
04-29-2005, 07:15 PM
He installed a new Yosh tri-oval full system... Had it jetted.

It runs fine at higher rpm's, but lost alot of power down low and is fouling plugs within minutes of taking off.

I say its running to lean, but the jets are balanced correctly. Any advice? anyone have this problem?

Mobile Dyno
04-29-2005, 07:23 PM
Sound really Rich to me if it's fouling plugs. What sizes does he have in now? What is the needle setting?

04-30-2005, 09:04 AM
i have a LRD pipe pretty close to a yoshi and i run a 176 main and its the PERFECT amount for me

baker250r
04-30-2005, 09:58 AM
i ran 160 and 165 for a white brothers R4