Help with An OS.46SF-P
Bought this engine new years ago and have never been able to get it to run truly reliably.
Was this engine made to run full flat out all the time? Wanted to use it in a 3D profile plane. Actually mounted it in the plane and same as always can't seem to get it to run properly to save my life.
Tried using the manual recommended #8 OS glow plug . No good. Used a hotter plug and that seems to at least keep it running.
Runs well at full throttle, takes forever to drop down to an idle though and just will not transition up smoothly unless I really make the throttle creap up no matter where I set the low speed mixture.
Am using a tuned pipe/header with it and running it on 15%
Am I better off using a stock OS muffler? Or something like a Macs muffler?
By the way. I completely took the carb apart, cleaned it just to make sure there was no varnish plugging it anywhere. Needle looks perfect too.