140 kit for 125

[Stubsy]

Can someone tell me where to get a 138cc kit for my 125 from? and roughly how much? ive tried ebay but didnt find anything

 

[sus1]

yea.. a 125 with a irk and oil singer can beat a 138..

 

[Cactus Jack]

Yeah a "138" kit won't do too much for you unless you need a rebore due to your engine blowing smoke or something ......... Your "125" is probably only a 119.69 cc (52.4 mm bore x 55.5 mm stroke) so the "138" kit (54 mm bore) = 127.11 cc with a 55.5 mm stroke .... It's a 7.4 cc boost ....

You'd be best to buy a 57 mm ceramic bore kit which will give you a genuine 141.62 cc ........ a 21.72 cc boost ....

Tuning - Cubic Capacity

Or as stated by others ... sell your 125 and buy a bigger motor ........

There's nothing magic or mystical about it ..... just cold hard fact ......

 

[Stubsy]

ok thanks fellas. i would like to do something to the motor so i can learn a bit more about them not just buy a bigger one and throw it in there. so where can i get these so called parts you speak of?>?