Is the screw over the choke an idling or high speed adjustment? Also in gear and throttled up something seems to slip. Does this motor have a slip prop?
Hi Don<br />The screw to which you refer is the low speed air/fuel mix. The high speed is fixed. There is a rubber hub in the propeller on your model. It is designed to break loose in the event something is hit. Yours may be bad. You will have to test it. I don't mean to pry, but if you could elaborare a little more on your exact problem or problems we could be more help.
Alcan,<br /><br />Thanks for the info on the carburator. The prop seems to slip at running speeds. It works fine at idle speeds. Can I remove the prop and see if something is worn?<br /><br />Thanks <br /><br />Don