Jetting RM 250 06 FMF pipe?

Question

i have an 06 rm250 got new pipe and spark arrester SST & turbinecore2 ride at 3000' usualy. any good ideas on jetting no one seems to want to help they can do it for me at the shop be wont tell me what to do and FMF has been no help!

Answer 1

thats odd for FMF, They always seem to help me when I have jetting trouble, maybe you caught them on a bad day....

Your stock jetting is as follows....

Main - 168

Pilot - 48

Needle - NECJ

Clip Position - 3

Air s***w - 1 out

Power Jet - 45

Slide - 7.0

Try these......if you are running an aftermarket pipe and silencer... from sea level to 2500 feet....

Main - 168

Pilot - 48

Needle - NECJ

Clip Position - 3

Air s***w - 1 1/2 out

Power Jet - 48

Slide - 7.0

if you will be riding up a little higher, like you said, around 3000 feet, try running your air s***w at 2 turns out, and possibly a 165 main jet.

jetting is finiky, and takes some experimenting to get it perfect, but start with this....

hope this helps.......