[Bill Hilly]

Originally Posted by Brook

https://www.ebay.com/itm/250cc-Cylin...5-e0bc64292688

Will this one do? its a link from the good ol boys youtube channel but mine is a 2021 so i dont know if these engines have changed at all.

I think that's the stock size bore. The kits can be deceiving. The 300 kits with a 70 mm pistol is actually going to equal 250 cc on these motors, and if you do buy one,it either has to have the outside diameter of the "sleeve" to be at a 73 mm, if I remember right, and it has to have a 16 mm wrist pin.