AS IVE ALLREADY POSTED here about the Motovert 141cc engine this china motor rips!! They are a Jaling bottom end and a Lifan big valve head with inner rotor, race cam etc. It does say 138 on the barrel but is a true 141cc engine. They sell for $990. Instock now. mayhemminis.com
The slinger is light all ready to balance the crank for the rotor. 12-1 comp. Jaling bottom end, lifen big valve top end. Cam made for 140cc power. 26mm carb (only looks like a 22mm). Awsome power.
CHECK OUT THE NEW COMPANY FROM USA AMR RACING. amrracing.com
AS USED BY DEREK COSTELLA 1st MINI MOTO 2006 12"PRO. MADE IN JAPAN. I HAVE THESE IN STOCK NOW.
I have got some TRUE 140cc china engines which claim 14HP. Complete setup. Big valve head, cam, 26mm carb, oil cooler, electrics etc. These things hammer!! Fit into any thumpstar, mojo etc.