I have an SPE 43 that runs very well from just a little under half to full throttle, from idle to just under half it runs pretty rough and does not sound very good. I have adjusted the low end needle a small bit about an 1/8 turn and it seems to help some.
How do you know how far you can safely go on adjustments?
The motor has about 2 gallons thru it, it just started running poorly today.

Thanks