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post #1 of (permalink) Old 02-28-2001, 03:55 PM
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650ex?

I have recently aquired a 89' 250 fourtrax fram fairly complete less engine,swingarm, and axle for a mere sum of 50 dollars...hehehe So what to do with a bare frame...hmmmm? How about a 400 or 650xr engine? Maybe even a 500cr engine lots of head shake though. I want some open class power, even thought of a small crotch rocket engine, it seems that there is an abudance of these on ebay for sale at a very reasonable price. Any suggestions or comments you guys have will be most appreciative. Once the project gets started I will keep pics posted as i go. Thanks

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post #2 of (permalink) Old 02-28-2001, 09:44 PM
 
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Re: 650ex?

i always liked the look of the rz500 v-4 two stroke engine in a quad frame...something about four expansion chambers sticking out everywhere...they are very rare though...

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post #3 of (permalink) Old 03-01-2001, 01:27 AM
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Re: 650ex?

Depending on what kind of riding you plan on doing with this project after your done!!

If it were me(and I own a bunch of Yamaha's) knowing it's going to be an older engine you will be working with I would go with a Honda, If it's 2 stroke riding, racing, dunes, I would go with the CR500 , or if I were going to do alot of trail riding,racing,some dunes I would go with a XR650, either way I would go big bore, you will love it ,I know I do

have fun with it and when you get done ,I want a race

Ride hard, Lifes short
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post #4 of (permalink) Old 03-01-2001, 01:30 AM
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Re: 650ex?

P.S. was'nt it kawasaki that had a hellava 3 cyl. 2 stroke HMMM!!!

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post #5 of (permalink) Old 03-01-2001, 08:41 AM
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Re: 650ex?

sounds like you got an interesting project going...been thinking about these types of projects for sometime now myself. let us know what you decide...i think i would have to go with a big bore 4 stroke...but i definitely agree with raptor_rider....go big bore either way you decide.

Chris
'87 Honda CR125R
'88 Suzuki Quadracer
'99 Kawasaki Prairie
Still Lookin For A Yamaha

post #6 of (permalink) Old 03-01-2001, 11:46 AM
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Re: 650ex?

ive hear that the quadzilla was bad due to large vibration and cracking frames, i would put somthing in that has a counterbalancer like the 400ex with a 440 kit and all other goodeies or xr 650 but i dont know if they have cb's

post #7 of (permalink) Old 03-04-2001, 09:25 PM
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Re: 650ex?

how hard would it be to slap a crotch rocket engine in the frame? you could find a wrecked 600 to 750cc bike pretty cheap probably. then just stretch the swingarm about 4 to 6 inches and you would have one heck of a ride. has anyone seen the custom quads with the big sport bike engines in them? are they chain driven or are they shaft driven? i would assume alot of work would have to be done to make the quad a shaft driven, but a chain driven shouldnt be to hard to do. keep us informed...you have captured my interest

Chris
'87 Honda CR125R
'88 Suzuki Quadracer
'99 Kawasaki Prairie
Still Lookin For A Yamaha :-)

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