Why do Lycomings start lean?
Hi Everyone.
Im just wondering if anyone knows why the Lycoming start process involves cranking while mixture is in the idle cut off position, and advancing the mixture when the engine kicks over, as opposed to Continental where it is started in the full rich position.
In my mind there really doesn't seem to be a lot of benefit in having the throttle in by some made up amount, resulting in the engine revving up way past 1000 on a cold winter morning in the time it takes to get your hand from the mixture to the throttle.
I'm just wondering what might be the reason for this starting process.