big bore kit any one tried for 125

[hanzito]

has any one tried the big bore kit form exremem for the 125. up to a 146.. and feedback.

[gmen]

Do not use the IRK kit with the dual clutch setup.You may experience a broken crank. 146cc kit is fine,do not modify the Internal Rotor Kit . Greg

[hanzito]

ok i am confused. so your saying ht e146 big bore kit is fine. but dont use a inner rotor kit?

[gmen]

the 146 cc kit is fine on the 125
the dual clutch set up(TY125) does not like the IRK
the 70 cc and 90cc uses a different clutch set up and seems to like the IRK.
The cam is good to upgrade
The vm26 carb is great
the fmf pipe is ok,
The cdi is great with the vm 26 and cam

[hanzito]

do you have to do anything to the clutches for the 146 kit

[RAWDAWG635]

I put the t-bolt 146 kit in my boys 125. It was broke down with a broke crank so when I took it to have it fixed I had the 146 put in in at the same time. The first crank with the 125cc lasted about 2 months before it broke after the 146 my boy rode it for about 30 minutes and broke another. He only weighs 48 pounds. M. Lynch at Xtreme told me there is a prob. with how the clutch is made and it is breaking the crank at the bolt that holds the clutch on, and right now there is no fix for it, said it would be better to go ahead a put a manual tranny motor in it, keep in mind that came from the parts/ tech guy at Xtreme. He said the cranks would keep breaking, he did offer to repair the broke crank for me but thats alot of work for 30 more minutes. Im going with the 150cc GPX motor that t-bolt sells or the KIller motorsports 160 its $560.00 with everything. They both have manual trannys.