qt50 big bore kit?

hello all, i have a 1987 qt50, and i would like to buy a big bore kit for her . the 27mph is not cuttin it anymore. Could anyone point me in the right direction! please

Re: qt50 big bore kit?

Yeah, look on e-bay, your local yamaha dealer or junkyard for a yt-60 top end. Its same stroke and bolt pattern, just a bigger piston. Its also known as a trizinger. You also might want to look into a pipe for it. Only one I know of is jemco. Hope this helps.

Re: qt50 big bore kit?

the kits on e bay wont work. i bought one last summer and found out there is like 2 different kinds of Yamaha engines. i can remember exactly what was the reason but it had a like space on the side of the head like 2 to 3 inches long and a inch wide. and in turn wont work on the qt50. What would you recommend me doin? im ready to buy!

Re: qt50 big bore kit?

There aren't any new cylinder kits available for the qt50. Your only option is to buy a used yt60 top end. The exhaust is also a really good idea. I know someone who put the yt60 top end, the jemco pipe, and pw50 gears on a qt50 and went over 50 mph.

Re: qt50 big bore kit?

Isnt the top end the same as a PW? If it is just get a pw50 bigbore and reeds from peeweecycle.com.

Re: qt50 big bore kit?

Search these here forums. Tons of useful info.

Re: qt50 big bore kit?

at peewees the big bore kit is temp unavalible.. darn

Re: qt50 big bore kit?

Re: qt50 big bore kit?

Any yt60 or yf60 top ends (qt60 big bore) are not available right now cause of the lead law.

bummer.

Re: qt50 big bore kit?

You sure, dude? Looks like it's still available from Bike Bandit brand new. Where did you hear that?

I hope it's not true, but thanks for the tip if it is.

Re: qt50 big bore kit?

Dealers are supposed to halt selling any parts for child bikes. Some dealers are still selling parts. Id call before ordering.

Re: qt50 big bore kit?

yeah thats what I do, still cant find the answer!!!!!!1

Re: qt50 big bore kit?

---------------- LaZer ------------* /

I used trizinger jug will need to be re bored. This is most often the case. Just look for a yt60 piston and rings and have your jug punched out to 60cc.

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