Choke issues

[mckenney]

HI Everyone,

I am new to this site. I have a predator 212 engine on a mini bike. I cleaned the carb and the jets, as well as I could, but if I turn the choke off the engine stalls. The engine runs as long as I do not let up completely on the throttle.

Any suggestions would be greatly appreciated.

Thanks in advance.

 

[Hellion]

Well no one really saw your inquiry because you posted in the Introductions forum.

Sounds like a too-lean problem. You might need to richen your air-to-fuel mixture. These engines were designed to run extremely lean from the factory because of EPA regulations, reducing smog etc. They need choke to start and restart, even when warm.

I don't know if your carb is adjustable. Some are not.

The other issue might be a vacuum leak between the carb and the engine; a leaky gasket letting too much air into the cylinder. Check for that and/or loose carb screws or nuts.