Yamaha chappy engine problems

I have a yamaha chappy and when I get to about 10-15 mph, the engine slows me down, and I can't get passed 15 mph. And it's an 80cc so it is definately more capable of 15 mph.

Any ideas what it could be?

And anyone know where I can get rear signals and mirrors for a 1978 yamaha chappy.

Re: Yamaha chappy engine problems

Do you have it in high gear??

Re: Yamaha chappy engine problems

or stuck in low gear, as they're 2-speed + hi/lo arent they? mine fails to shift at inconvenient times.

Re: Yamaha chappy engine problems

Ebay often has the parts your looking for

Jack

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