New OS46 FX ...difficult to start !
hmm to rich or not too rich is the question...!
I have had a lt of fuel thru this and will start leaning it out now. Do you suggest I let her go at full throttle for the whole tank !!
The procedure that I followed after the first very rich runs was to lean it out a couple clicks between each run. I used wide open throttle but kept the run time short (5 min). I believe the rule of thumb is that its broken in when it will hold a steady peak rpm without fluctuating wildly.
-Jeremy