Year: 09' 250x
Temperature Range: 60-90 deg F
Smog (AIS): N/A (250r head), air box plugs(applied kit)
Airbox Modified Top: partial top cut
Airbox Modified Sides: No
Backfire Screen: Removed
Air Filter: Twin air, stock cage.
Pilot Jet: 45
Main Jet: 168
Needle Clip Position: 3th
Fuel Screw Type: R-D flex jet
Fuel Screw Setting: 2 turns
AP Modified: no
Leak Jet: 1 turn
AP Cover: Boysen QS3
Exhaust Type: FMF powerbomb head pipe, powercore 4 slip on
Exhaust Modified: No
Pink Wire Modified: No, Planning on putting it on a switch to try it.
Head: 07' 250R head, Kw valve's done by CRFSonly.
Cam: 08' 250R cam.
Piston: Vertex 13.5:1
I have tried a wide range of jet choices and so far this has been my best setup, good power down low and snap up top,great trail bike. looking to go for a big bore on my next piston, and a crfsonly port job, that should pull a bit more power down low and all around. I like a good bottom pull, and its nice to still have it up top too.
Last edited by hall_philip
on Fri Jan 16, 2015 3:54 pm, edited 1 time in total.