[hollar4a$]

Hello i have tried a #132 Main and #42 Pilot and the bike is cutting out at higher RPMs but idols fine and takes off fine? just smoothly rolling on the gas it cuts out and bogs Any suggestions???

[crfsonly]

check out the 150R jetting database:

http://www.crfsonly.com/forum/viewtopic.php?t=13471

look for those who are in a similar altitude.

ken

[hollar4a$]

Thank you. There is some good guidlines but nothing exact that i am looking for. This site is great!

[lightflight]

looks like thunder valley is at 6100'

http://www.crfsonly.com/catalog/product ... ts_id/2253

have you tried JDjetting kit. comes with the jets needle and the research. It works great for all other model Crfs. I haven't tried it on a 150R but based on the other models I've tried it on it a great way to go.