125cc big bore

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Ozan-fox

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I have been checking out some engines and i would like to know as much as i can about the Chinese 125cc. I'm looking at the one on ebay that is semi auto three speed with reverse. I like the thought of being able to shift. So I'm wondering if it would be worth it to buy that engine, and then get a big bore kit. Maybe the 200cc kit. If i did, what kind of power range would i be looking at. I don't want to go super fast, just trail riding with my kids. I would like to keep up with my wife though. She has a Forman 400. Anyway, let me know your thoughts.
 
rocketkart

rocketkart

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i would get somthing a little bigger say maybe a 150cc 250cc range thats what i would get for somthing like your kart.
 
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mckutzy

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Could you post a link for the motor in question. Usually there is a ton of the Chinese stuff out there.
 
OzFab

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I don't get it: Why buy a 125cc then spend more money on a big bore kit, then spend even more money &/or time fitting it when you could buy a 250cc or bigger & be done with it (& probably save money too)
 
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Ozan-fox

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I keep seeing guys putting these monsters on their carts and they end up having to get a stronger axle, bearings and so forth. I just want to buy an out of the box engine with reverse, and i don't have a cover for tav so as soon as i drop off into some mud or water, it slips like crazy. I'm going to have to look at how i post a link to show witch one I'm looking at.
 
landuse

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Ozan-fox said:
I keep seeing guys putting these monsters on their carts and they end up having to get a stronger axle, bearings and so forth. I just want to buy an out of the box engine with reverse, and i don't have a cover for tav so as soon as i drop off into some mud or water, it slips like crazy. I'm going to have to look at how i post a link to show witch one I'm looking at.
Click to expand...

That is when someone sticks a 500cc engine on a kart.

Just copy and paste the link into your post
 
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philsev

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If you could post the link I think I mite have the engine your talking about 125cc three speed no clutch required with a neutral and a reverse. I would also like to look at the bore kit you were talking about I'm always interested in getting more out of that engine.
 
OzFab

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How is that any better? In fact, it's worse. That particular kit is for a 90cc engine, to take it out to 114cc.

The simple fact is a GY6 big bore kit will work on, you guessed it, A GY6 engine...
 
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Ozan-fox

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This is why I'm asking questions. Thanks for pointing out the noon compatibility. Besides, i took fabro's advise to heart. I'm looking at a250 instead. Its air cooled, for speed, with reverse.
 
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