vibrations

[lxbubbleman]

Hi everyone its lxbubbleman here i am just ask about why is my 49cc pocket bike vibrating a lot compared to my mates bike its not a big issue but i would like to stop the vibrations if possible thanks

 

[my67xr]

is it one of the little 2 stroke bike's ?
if so, i would be checking your the keyway on the crankshaft for the flywheel, it could be sheared or damaged.
also check that the nut/bolt holding it to the crankshaft is tight.
otherwise it may be just be out of balance, possibly lost a fin or 2 ?

they are pretty cheap to replace them, or upgrade it with a lightened flywheel for about $20
if you just leave it, it can end with the crankshaft breaking and taking out the engine casings with it.

 

[lxbubbleman]

Thanks for the info my67xr just more info the bike was not always vibrating like crazy it happened randomly one day when i was riding it down the road.

 

[GooseMan]

check the bolts that mount the engine to the bike are tight. China bolts allways come loose

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