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Discussion Starter #1
Ok, I need a cheap, small, fast (or at least upgradeable to fast) single or 2 cylinder for my racer. Anyone have ideas? I need something I can find. I was thinking of hitting a junkyard to find something.

22/m
1980 Honda CB750
1972 Oldsmobile 442
 

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That's kind of a broad request. What are the rules? DT175's a good one, so's PE175 but the Yamaha will be easier to find... How about old CR/MT250?
 

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Discussion Starter #5
Well I already have a MX175 motor, but it only makes 25hp.

22/m
1980 Honda CB750
1972 Oldsmobile 442
 

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I don't know what the rules are, but if I wanted balls out fast, I'd try and find one of the 2 stroke kx250cc dirt bike motors (or any 2 stroke 250cc dirt bike motor).
 

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Discussion Starter #7
I'm not making a race bike. I just want something balls to the wall fast, light, good handling and something I can run on the street is most important and still bring to the track and do some ass kicking. I was thinking 4 stroke since I can run them on the street without getting in trouble

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1980 Honda CB750
1972 Oldsmobile 442
 

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i have 2 honda CL125s. they go great arond town....not really fast though. im at a loss to think of fast and one cylinder....

There is the right way, the wrong way and the british way to do anything!
 

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Are you just looking for an engine? Do you already have a roller that you just need an engine for??

FR
 

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Discussion Starter #11
yea I have a roller, I need a engine

22/m
1980 Honda CB750
1972 Oldsmobile 442
 

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If you want a four stroke, Try a Ninja 250. Six speed, 120 top end and light. Two stroke, KX500. Make sure you have plenty of clean BVD's if you go with the KX 500. If you pick the KX, add a 14oz. flywheel weight to tame the powerband a bit. I've owned three of em and they are great machines.
 

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Discussion Starter #13
how much power did the ninja 250s have? They are liquid cooled if I remember right? My frame with everything on there minus engine wieghs 150lbs

22/m
1980 Honda CB750
1972 Oldsmobile 442

Edited by - psyco diver 69 on Jan 08 2007 12:48:00 AM
 

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Yah, the Ninja 250's are liquid cooled. They make great power for their size and weight. Redline is 13000 and you need to run it between 10 and 13 to keep it in the sweet spot. With a light bike like yours, I think this would be a great setup. BHP is listed at 38 but the rev factor would be great. Add a good pipe, carb kit and filter and I bet a guy could get close to fifty.
 

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Discussion Starter #16
Cool, I amy go to the local junkyard and look for a junker. I see parts bikes pop on ebay everyonce in a while. I guess I would need the wiring harness, cooling system, and of course the engine. I have pretty much everything else. It would be nice to put disc brakes on the front, luckly my front end looks pretty easy to swap any front end I want. This is going to be a sick little puppy and I guess if my car doesn't kill me this may

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1972 Oldsmobile 442
 

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Go for it! Keep us posted.
 

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yeah dude that will be totaly sick, i would love to see some pics of that bad boy, keep us posted

the lil guy
 

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got a trio of dt175's/ one runs, one is close to running, one is a parts bonanza......

rob (unga),

i really considered the rd trade....if casey and i get the house, and don't need the money for drywall, i might be interested. that bike is the snizzle!

tex
 
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