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-   -   Idle Mixture Adjustment? (https://vansairforce.net/community/showthread.php?t=163739)

JonJay 09-01-2018 09:41 AM

I idle smoothly at 600rpm with the Silverhawk and standard mags. 750 would be too high for me and I am CS.
Just a data point for you.

Plummit 09-01-2018 10:30 AM

Quote:

Originally Posted by dtw_rv6 (Post 1285084)
Heads or tails?��
The best part is that either answer could solve the problem.

I'm in the camp that your mixture is already too lean. Fatten it up (enrichen) and make sure you get an increase in RPM as you move the mixture to idle from full rich.

-Marc

dtw_rv6 09-04-2018 11:54 AM

Agreed. No rise in RPM during idle cutoff is a pretty good clue

clam 09-08-2018 10:20 PM

Update... I enrichened the mixture which helped a little, but I believe the issue I was having had more to do with heat. The engine stumble and die issue I was experiencing was occurring after ground ops where the engine was really warm. I think there was some fuel vaporization causing an even leaner mixture. I flew the airplane for first flight today with no related issues after a proper (but brief) run-up. The engine idles nicely and seems happy at ~630-650 rpm.


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