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View Full Version : 440 jetting ???



kidder
05-26-2005, 05:42 PM
hey guys this is my first post so here it goes... i have some new parts comming for the old 400. 440 big bore and a stage 1 hot cam.. the bike already has a k&n filter and an fmf exhaust. i ride moderatly fast woods trails at or below 1000ft... while i wait for the parts to come in what jetting should i be setting up the carb with... also when you guys did your 440 mods did you go with the oversize head studs from east coast atv????? any help is greatly appreciated.. thanks:D

Mobile Dyno
05-26-2005, 07:30 PM
I didn't go with the head studs. I have the wiesco 440kit with White Bros. XC Cam, FMF Ti-4 exhaust with Powerbomb header. Before I put the 450r carb on I was running 2.5 turns out on the mixture screw, 3rd clip from the top of the needle, and a 170main. That was dialed in on my A/F module on the Dyno. I'm at 312ft altitude. Thats what I would recommend you run:) Hope this helps