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2009 CRF450X re-jetting with fmf pipe

Posted: Sun Oct 06, 2013 4:31 pm
by clements1993
I have a 2000 CRF450x that im building into a super moto. its completely stock right now and Im putting a FMF powercore 4 slip on this week. Any suggestions on jetting size once I put the pipe on?

Posted: Mon Oct 07, 2013 10:18 am
by Leardriver
Start with a 165 main, 45 pilot, and you probably won't ever have to change it.

Error

Posted: Mon Oct 07, 2013 10:29 am
by clements1993
Does it matter that the bike is an 09 not an 00. Didn't see the spelling mistake last night

Posted: Mon Oct 07, 2013 1:47 pm
by crfsonly
clements1993...welcome to CRF's Only! we have had great success with the JD Jetting kit. comes with two custom tapered needles and jets necessary for correctly jetting your 450X. it's the only jetting we run in ours. again, welcome.

http://www.crfsonly.com/catalog/product ... ts_id/1093

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