R69S engine idle shutdown problem

[junesnow]

my R69S able to drive normally without engine stalling,but the engine stopped in neutral unless i rev the gas very high. the engine stop at low RPM. i cleaned the carburetor,but still have no idea to solve this problem.

[cwf]

Do a basic check : valve gaps, sparkplug gaps, air filter clean, contact breaker gap.

Charlie.

[Boxerbutt]

Double check idle speed screws and make sure throttle linkage at handlebar is correct.

[Tinkertimejeff]

You may have a clogged idle jet! Sometimes what you think is a good cleaning does not get the idle jet clean, even the ultrasonic cleaning method doesn't always work. The best way to ensure its clean is to remove it and carefully put a few shots of spray carb cleaner or non-chlorinated brake cleaner through it and make sure it has a good steady spray pattern. It its not good you can either buy new jets or use a little tiny piece of wire to gently ream out the jet then check the spray pattern. I use the individual strands from an old brake cable to get mine clean.

[junesnow]

thanks for everyone reply.
i use a new idle jet sets but still can not deal with that. The RPM can not reduce but can ride the bike.
https://youtu.be/_20G2WW1vtk?si=HnOfRnvATM57YRvw

[schrader7032]

You probably have a carb problem as evidenced by the right hand header. It's very blued as compared to the other side. The right side is not running well.