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View Full Version : FCR 39mm Jetting??



twisted threads
04-26-2002, 05:52 PM
What size of jets do you guys run in your FCR 39mm if you have one??? I have been messing around with my bike and I cant get it running right.:confused:

fast440
04-26-2002, 09:12 PM
i VE got a 440 motor 39FCR with a 50 pilot and 168 main Runs Great

bighig
04-26-2002, 11:19 PM
What altitude are you running at? What notch is the clip at on the needle? And how the **** do you adjust the air/fuel at? I can't find it for the life of me, I found the idle screw. Please respond.

twisted threads
04-27-2002, 01:09 AM
im running at anywere from 0 to 400 feet and run 170 main and a 52 pilot.
The clip is in the 2 notch from the bottom. The air screw is on the bottom of the carb by the cap were the main jet goes.

Earlier I was having problems with the jetting but a friend and I got it fixed.:cool: