PDA

View Full Version : hmf full system jetting


xcnick38
07-12-2007, 07:34 PM
HMF full system... stock air box... ???

i middle clip and on needle, and like a 160 main?
Jake250ex
07-12-2007, 10:43 PM
If its a 06 or up 160 is way too small. I have a 165 with a HMF slip on my 07. If you call HMF they will tell you it firsthand instead of going thru a bunch of guessers.
400exrider707
07-13-2007, 06:35 AM
HMF has about the worst jetting recommendations I've seen yet to date. 165 main is more than enough for full systems with open air box on 06+'s, you can ask anyone on here that has one, or ask Colby@C&Dracing about it.

What year bike do you have?
07-13-2007, 09:15 AM
Originally posted by xcnick38
HMF full system... stock air box... ???

i middle clip and on needle, and like a 160 main?

What year quad?
xcnick38
07-13-2007, 09:23 AM
its an 07... my buddy had HMF full system, HRC lid...

middle clip in needle, 162 main, and the pilot HMF sent him...
Jake250ex
07-14-2007, 10:09 AM
Originally posted by 400exrider707
HMF has about the worst jetting recommendations I've seen yet to date. 165 main is more than enough for full systems with open air box on 06+'s, you can ask anyone on here that has one, or ask Colby@C&Dracing about it.

What year bike do you have?

didnt know that! they did send me a 48 pilot jet which was HUGE. What do you think I should go to? 160? I put the pilot jet back to the stock 42