ORIGINAL: gunfighterII
Sport,
I had to go get my instructions and here's what they say, advance throttle arm to full open position, the engine should now be running excessively rich, if not, turn the adjustment screw until a rich mixture is acheived. Now lean the engine by turning in the HS needle until max RPM is obtained, next adjust the idle by closing the throttle arm and adjusting the idle mixture disc.
I have to respectfully disagree with you again as it says that right in the instructions, they make it sound like you can adjust the screw and change the mixture setting. Ain't gonna happen.
I missunderstood that, but it did not say to leave the low speed needle alone. So it had the right instructions because it did not say to leave the low speed needle alone and do nothing with it. And for your information adjusting the pressure up or down will change the mixture, however only on the high speed needle, and only when the pressure is insufficient to provide enough fuel. The instructions are 100% correct for I got it right doing it this way every time. The engine will indeed lean out if the pressure is reduced enough. I have done this many times, I suspect some pumps do not do this as they should, or people damage them by turning it too far in or out.