Motorized Bicycle Trouble ShootingUse this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.
piston probs
Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. hello all. ive been riding my 80cc motor i bought used from ebay for almost 7 months with no probs ...
hello all. ive been riding my 80cc motor i bought used from ebay for almost 7 months with no probs . my mistake was i ordered 80 cc piston rings and installed them . i droped my cyclinder and did not notice a hair line crack. so when i put it together and started it the piston froze. i tried to take it apart and broke the piston when i was knocking it out. so i had a broken piston and cycinder . so i borrowed both parts from another 80 cc motor .. there the same diameter but the new piston is taller and hits my head. what do i do to find a new piston and jug for this motor ?
ah, but that moor doest got 10mph faster anymore..... hate bursting bubbles like that buddy but with top end damage like that reparing it wont give you the same speed..... 7 months you said? break in will give you that much more speed. that engine's toast....
sorry man buy a replacment i have to do the same thing for when mine goes