Re: Yamaha 250 idle trouble
Hmmmmmmmmm................<br /><br />Sounds like it might be a sneeze you are reffering to when it dies. That would indicate a lean condition. <br /><br />Although the idle down and stumble/stall might be needle/seat or internal carb leakage related. If true then one carb rich and one lean. <br /><br />Maybe just leaning out and dieing.<br /><br />Does adding pressure to the primer bulb during this issue temporarily correct the issue?<br /><br />Other possablilties might include airleak in fuel connector causing fuel supply to run out during idle, poor fuel pump performance, air leak or fuel restriction elsewhere in supply.<br /><br />I believe those motors also have a low speed section of the ignition components that also could be starting to fail. Look towards fuel delivery first then carb(s) next, then ignition.
