Thinking of building a motor

[possum]

buy crank new for sure. You will thank yourself later.

[B.b.p builders]

Ya I 100% agree on the new crank and bearings. I think best bet is to buy a 421 kit new from hjr, or one of the other good names out there. Then piece together all the other stuff you need over time used. Such as head, carbs, reeds, intake pipes, all that good stuff!

[tdod101]

Am I gonna need big carbs or use the stock ones ? Everyone seems to be using the pwk's

[Jereme6655]

for a cub? you're definitely going to need larger carbs.....

[B.b.p builders]

I will sell you a set of 35mm pwk's. I want smaller carbs on my trail bike. I liked it alot better when it had 30mm oko carbs