Q: 50cc dirt bike 2 stroke problems

asked by on

I have a mini 50cc 2 stroke dirt Bike and it runs good I ride it around the block every weekend when I got it out this weekend I was pushing it out and the back wheel was stuck and wouldn't move it would only move backwards so I put it on the table and the chain wasn't stuck or anything so I too off the (to my knowledge it's called a single chain transmission) so I took that off what the chain connects to and looked inside there was a l piece broken off but the second chain would still spin so I connected it all back without the piece in and then connected the other chain and it would spin so i started it up and went found the block 2 times fine on the third I did nothing different than the other 2 I slowed down to take the corner then excelersted about 3 meters from the corner the chain came off got stuck around the back tire causing it to stop spinning and I began to skid and i went over and the bike fell on me and there's all white marks on the road

Hi there:

Unfortunately, we don’t work on 50 cc dirt bikes; however, it’s possible that the sprocket inside the gear drive (inside the single-chain transmission on the pit bike) is bent; which sometimes causes the issues you’re experiencing. If you can find a local dirt bike mechanic, i’m sure they’ll be able to diagnose this issue for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. 50cc dirt bike 2 stroke problems

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.