Wow u want to go all out... if u go with a head than get a 26mm carb can't tell u witch head to get.. a 143 with a head runs good with a stock carb with no mod head..head mod means carb and pipe foreshore...

 

If your going to mod your motor you want to do your bottom end too. Hd output shaft, hd clutch plates and springs. There are some other stuff also. As for the difference in the V1 head and V2 head I have heard it is like night and day. The V2 head is much faster.

 

Oh alright sounds good guess ill be going with the V2 head they are ridiculously expensive but whatever thanks dude

 

I have a yosh exhaust on it already so no worries there just got to get everything else

 

you will see a good differance between the v1 and v2 , if your gonna do it i would do it right the first time!

tb143 with v2 head 26mm carb

if your gonna split the cases why not put a stroker

 

If I put a stroker crank doesn't it cause problems usually to the motor?

 

I would say a striker crank us just as reliable as stock. Never heard of one failing, and I've best on one with no complaints. Your already talking about splitting the case so you might as well go all out. 143 v2 stroked w/26 is pretty much the most common motor setup out there.

 

Stroker 143cc is as big as you can get WITHOUT case bore machine work

 

Bored the cases while it's apart. You will wanna go bigger so bore it for the tb 67mm just in case lol I regret not doing it to mine that's for damn sure