Y yz250fboy Member Jul 24, 2007 4 0 Oct 28, 2007 #1 I just ordered a Pro Circuit T-4 pipe for my 04 DRz 125l. I have cut open the airbox and I was wondering what I need to do as far as jetting goes? Thanx
I just ordered a Pro Circuit T-4 pipe for my 04 DRz 125l. I have cut open the airbox and I was wondering what I need to do as far as jetting goes? Thanx
Patman Pantless Wonder LIFETIME SPONSOR Dec 26, 1999 19,765 1 Oct 28, 2007 #2 My guess would be to richen it up a bit.