I Gave Up ! Correct 2 cycle oil percentage ????
After spending 24 hrs assembling onex genesis bike and china motor kit , i took it to an experienced guy who have built them before . chain broke , but i had it going . nothing fit right . But it looks nice ! engine said 69cc , but papers said 49cc . i ordered 49cc ?????? Also i used opti 2 2 cycle oil 50: 1 ratio ,m mixed with gas . Is that ok ?