Hi,
I have problems with a YS 140 sport. It was running more or less fine, but after some weeks without use it, now itÂīs impossible to adjust it. To full throttle is ok, the problem is in idle, after 5 or 6 seconds the rpm goes up. If you open the throttle suddenly, the engine stops. I tried to re-adjust the low speed needle, but nothing happened.
IÂīd be grateful if someone could give me some idea to find the solution.
Best regards from Spain.