MA3-SPA Initial Mixture Setting?

Hi, All;

I've been trying to get my O-200 to fire up so I can then take the plane to the hangar. However, no joy.

I thought I had spark issues, so double-checked the crank/cam timing, firing order from #1 cylinder, plug wire orientation, distributor timing with the mag synch tool, etc.

So, I sprayed some starting fluid in the air filter. THAT got some results, so I know that SOMETHING is at lest providing a start.

So now I'm concentrating on fuel.

Just to make sure, how many turns (?) out from fully seated do I back-out the larger idle mixture screw on the upper side of the carb (relatively)?

Thanks for any suggestions!

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Permalink Reply by Clint L Gosch on February 23, 2022 at 8:54pm

Hi Carl,  The carb manual I have states 1 1/2 to 2 turns out from the fully seated position as a starting point.  I have attached the manual, info should be on sheet 11.  Hope this helps!  

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Permalink Reply by Carl Orton on February 24, 2022 at 11:03am

Thank you so much, Clint; that helps tremendously!

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