Sport Pilot,
Thank you very much for your reply. You hit right in to the bulls eye. After loosing the stopper screw, I did not know I lost it and the plane won't idle well, it would die down even full-throttle was not stable, and I saw for the first time when I cleaned the carb that this screw runs between the throttle arm barrel and now I know the function of that screw. I've been advised to use green locktite for it, as blue would melt down, red would completely make it impossible to come off in case I'd ever need it and green is best.
My LHS did not have it, and they ordered the screw for me, and expected to be there this Friday. I'm gonna update y'all once I get the engine back to running as I've seen this engine with my own eyes screaming, hardly heard any grumbling about this engine, so why am I getting so much problems? I hope that's the last resort.
Since March we are having bad winds and they are not ready to quit.
Happy flying