Slogger
Member
How many hours are on the engine now? Is it fully broken in?
Mine ran inconsistently during the break in, like it had a mind of its own. (I might have caused some of it, changing oil mix and jetting and stuff)
If it's ok from 3/4 to full throttle you can try to drop your needle another notch. (Raise the clip) That leans the mixture at lower speeds. If it still isn't lean enough to buzz happily you should go one step leaner on the main jet, put the clip back on a lower (richer) notch and try it. Watch out for a lean run, if you find it's running real lean shut it off and pedal home.
If your work is a far piece it might be getting hot and sagging as you get there. I don't think these engines are stable temperature-wise for continuous running, they need a cool down break sometimes.
Mine ran inconsistently during the break in, like it had a mind of its own. (I might have caused some of it, changing oil mix and jetting and stuff)
If it's ok from 3/4 to full throttle you can try to drop your needle another notch. (Raise the clip) That leans the mixture at lower speeds. If it still isn't lean enough to buzz happily you should go one step leaner on the main jet, put the clip back on a lower (richer) notch and try it. Watch out for a lean run, if you find it's running real lean shut it off and pedal home.
If your work is a far piece it might be getting hot and sagging as you get there. I don't think these engines are stable temperature-wise for continuous running, they need a cool down break sometimes.