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View Full Version : 440 not running right


stc416rider
05-15-2006, 10:22 AM
im not really sure but my 440 is not pullin like i thought it would i was thinkin of a new 14 tooth front sprocket but im kinda dissipointed
2004exrider
05-15-2006, 07:28 PM
I'd first suggest checking the spark plug to make sure that your jetting is dead on or atleast close then go on from there. Then also change your exhaust, even if its a slip on its gonna be better than a "modified" stocker and then get a cam if you already didnt.

Jimmy
Joe400ex
05-15-2006, 07:39 PM
Originally posted by 2004exrider
I'd first suggest checking the spark plug to make sure that your jetting is dead on or atleast close then go on from there. Then also change your exhaust, even if its a slip on its gonna be better than a "modified" stocker and then get a cam if you already didnt.

Jimmy
dragracer101
05-15-2006, 07:57 PM
YA, its def. the jetting
stc416rider
05-16-2006, 02:37 PM
its not a modded stocker sry i got a new quad and i havent got around to changin my sig yet its a white bros
psycafunkapus
05-16-2006, 03:54 PM
it might be the stock cluch too....had the same problem....yeah it was fine startin off but after a second or two there just didnt seem like it wasnt there....well good luck
05-17-2006, 05:17 PM
It is not your jetting, jetting is easy to tell when its bad it will fowl spark plugs. It is 100% sure your clutch, I had the same problem with my 460ex it would not have to low end power I wanted it was all top end so I ordered a Hinson Dirt Digger Clutch with heavy duty springs and a Hinson clutch basket and It was all the low end power I wanted :p