I read some were you can take a 125 top end and put it on a kx 80 has it been done ?

 

I have not played with that combination. Welcome to KF

 

Thanks for the reply and welcome,anyways what I am doing is putting this motor in a big scale rc buggy,it is a 94 kx80 .I think I can get it bored to 112cc or just get a 100cc head? and p and p it, what is the stock hp and what is the max I can get? Buggy should weight arownd 80 lbs, want to make my buddys look like fools with their ride on toys!( I do have a couple snowmobiles 2 atvs 1 old 250 husky)Should be lots of laughs.

 

What! lol an RC with an 80cc engine. hmmm I would rather ride. But ok, all of my KX manuals are pre 90 and I have not hacked any KX's to know a simple swap yet.