Engine Flooded Cessna 172 S

In the nice warm weather you can have problems starting Cessna engines, I know
I have. The last time I forgot this procedure I was reminded by the CFI what the
approved procedure was and that three hands were required to carry it out
properly.

So as it says in the official Cessna POH

“In the event of over priming or flooding”,

·    Turn off the fuel pump (no more priming is required)
·    Open the throttle (full open i.e. pushed in)
·    Continue to crank the engine (Left hand) with the mixture full lean.
This is removing the vapor from the fuel line.
·    When the engine starts, smoothly advance the mixture control to full
rich (Right hand)
·    And retard the throttle to the desired idle speed (Not sure which hand
this is).

In reality of course with only two hands you should advance (smoothly, but
quickly) the mixture so the engine doesn’t stop and the quickly, but smoothly
retard the throttle before you take off!

Another solution of course, if you have the option is to ask the instructor to
advance the mixture when the engine catches while you handle the cranking and
the throttle.

Have fun practicing that one!