RE: os fs 52s
Don
I made the adjustments per your instructions. Here are the results. Top end 12,000 RPM richened up to 11,500, Idle leaned out as far as I can and still acheive instant jump to wide open RPM is around 2,500. I still have a little shaking (not a smooth idle) but, it is a lot better than what I had. If I go any slower with the idle it shakes quite a bit and runs erractically. I think I will be happy with the way it is performing now. Do you have any further suggestions? I wonder if I should use a different prop such as a 12-6 to get the top end a little slower.
Thanks for your help.
Gary
Oh, by the way this engine probably has 1.5 to 2 gallons run through it.