It'll go faster if you add a tooth to the front or drop 3 in the rear. Might be able to get another 10mph with that.

 

ok, my bad man, my bad, lol.

 

Switch the front and rear sprockets. No, I don't mean put different ones on, I mean put the front on the rear and the rear on the front. You should be able to go about 450 mph. [img]i/expressions/face-icon-small-happy.gif[/img] [img]i/expressions/face-icon-small-tongue.gif[/img]

 

my stock 400 goes 140mph... your all retarded

 

That's cause his was the 09 model. Heck all the new quads do at least 100.

 

they cant be that fast I pass them all the time on my 350x . I am usually riding a wheelie and shifting gears so its kind of hard to say how fast I am going.

 

Well, if you're using a gps to get the speed and you're doing a wheelie, it's gonna be off.

See, you put the gps unit closer to the satellites and they think you're really going faster.

 

Yeah, well my 480R goes 240 and that's before I shift out of second!

 

Judging from half the comments here I wont post any thing use full because it seems like a waste. With thaat said. lol

Hawkman- Jet kit regulates your fuel / air mixture, how much of each get into the cylinder ... If your not evan sure what a jet kit is dont attempt to do it on your own. Call your local shops and see what they would charge you to pipe and jet your quad.

Check out denniskirk.com or rockymountainatv.com for pipe /jet kit combos.
pipe /jet kit combos are dyer to let your bike run at its full potential.

Great pipes for ex=

White brothers
Big Gun
Pro Circuit
Yosimura
FmF

 

i was obviously joking no stock 400 can go 140mph hahaha