1980 80cc 2 stroke engine worth rebuilding?

[Shifter8921]

Hi, i have an old 1980 gt80g yamaha motorcycle. I was wondering if anybody thinks its worth rebuilding and modifying for shifter kart racing? And also will it have enough power?

 

[rwd4evr]

i've got the same motor on a mx 80. got no spark so its never run. i thought the same thing, puttin it on a kart. internal parts are not cheap. weisco piston and rings is a hundred bucks.clutch parts are available. if you can find parts cheap or yours are usable it would work. i would look into some port work/ bigger carb mod too.

 

[Shifter8921]

Ok thanks!

 

[addision87]

ive had many gt80s there a good bike never die however pushing a cart might be a bit much for it tho. parts here are cheap for them chances are it might not be that bad off.

 

[TUK101]

It really depends on why it needs rebuilt. If it is just rings and maybe a hone, sure its worth it. Maybe even worth it if it just needs a complete top end job. Not worth it if it has transmission troubles or a crank. The engine shouldn't have much trouble pushing a cart with the right gearing. These engines have torque.