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View Full Version : 440 jetting?



bens250ex
09-11-2007, 08:33 PM
ok i just got my 440 kit running and it runs great but what do i need to do for jetting? my mods are 440 12:1 no snorkal,or airlid, uni filter, slip on exhaust, and choke removed what kind of jetting should i be lookin at my current jetting is 52, and a 175 but i has a 52 with a 152 but the only diff i could tell was the 175 seemed snappy on throttle but sluggish through the gears. what are you guys running maybe it will give me a range to get some jets. thanks

Wheelie
09-11-2007, 08:39 PM
What cam?

bens250ex
09-11-2007, 08:55 PM
stock cam sadely not enough cash for a hot cam

Wheelie
09-11-2007, 09:01 PM
I suggest a 42 pilot, clip on the needle 1 notch lower than stock and a 168-170main. Should be a good starting point.