Yzf 426?????

[yello300ex]

well i was at the local track i go to last sunday and i saw this guy with a yzf 426 engine in his 400 frame and ive never seen any quad go that fast and clear every jump at that track...how much does this kind of engine cost?? do any pro's use it?

[Fleshwound]

yes pros use it....
but dont think your gunna clear all the jumps by putting this engine in your frame...

[yello300ex]

no im not puttin it on my bike i was just wonderin if it was used by pros

[Paul400ex2002]

i'm gonna build a me a quad with a yz400f motor in it starting in august, and i know yamaha is coming out with a new quad, but i'd rather use a proven motor in a proven frame.

[prostar07]

dude are u kidding me..... a yzf426 u must b ****ting urself....i race with my raptor 66o with a jet kit,extended swingarm,bigger rear and front axel,new hydrolic breaks,bew bar,new pistons,exhaust and shocks so far ive put about 7,000 into the quad so u guys aint got ****

[300ex_#387]

Originally posted by prostar07
dude are u kidding me..... a yzf426 u must b ****ting urself....i race with my raptor 66o with a jet kit,extended swingarm,bigger rear and front axel,new hydrolic breaks,bew bar,new pistons,exhaust and shocks so far ive put about 7,000 into the quad so u guys aint got ****


"Bigger rear and front axel" uhh.......:huh anyone care to explain.

[reichart90]

look how old that thread is you retards

haha

[440bigborekit]

Originally posted by prostar07
dude are u kidding me..... a yzf426 u must b ****ting urself....i race with my raptor 66o with a jet kit,extended swingarm,bigger rear and front axel,new hydrolic breaks,bew bar,new pistons,exhaust and shocks so far ive put about 7,000 into the quad so u guys aint got ****


i didnt know single cylinder raptors had "pistons" i thought it only had a piston and a front axle that must be for the 3 stroke motor you put in there huh........lol...there are some dumb ppl in this world and he is one of them

[QFreak300ex]

Originally posted by Paul400ex2002
i'm gonna build a me a quad with a yz400f motor in it starting in august, and i know yamaha is coming out with a new quad, but i'd rather use a proven motor in a proven frame.

wat is the new quad?:eek:

[stc416rider]

Originally posted by QFreak300ex
wat is the new quad?:eek:

yeah i didnt hear of n e new quad

[440bigborekit]

this thread is so old i just realized he is talking about the yfz450

[geogeorge]

Originally posted by 300ex_#387
"Bigger rear and front axel" uhh.......:huh anyone care to explain.

I think what he was trying to say is he has a longer rear axel and longer front A arms. For moto cross a wider quad is better. For woods you don't wont to be fat.