I have a mini 49cc dirt bike and it starts up fine but the back tier is locked up and wont move whats wrong?

Question

I have a mini 49cc dirt bike and it starts up fine but the back tier is locked up and wont move whats wrong?

Answer 1

It could be the rear wheel bearings frozen up..How tight is the chain?  If you dont want to take the chain off..pull the spark plug out and put it in gear and see if you can push it to turn the motor over...If you can could be the trans..If it wont role...back wheel problems......If it was made in China you have even a bigger problem....lol

Answer 2

Your valve stem cap is to tight.

Answer 3

I would start at looking at the back brakes they could be ceased, if that is not the case try taking the chain off and see if it is the hub, and finally the tranny could be smoked, but if it starts and runs and it is a centrifugal clutch could be simple.

Answer 4

Your brakes are probobaly ceased up. I had the same problem last summer.

Answer 5

bearings could be seased. or back bracks stuck on. drum or disk????is there mud in the chain to no joke at races somtimes i get mud in my chian and the bike will just NOT  move.or get a crf150r lol thats wat i have