REFLECTOR: Elec Ignition - Idle cutoff

[Scott Derrick]

If your talking about leaning the mixture until it cuts off the engine 
yes.  You should get a rise as specified for your engine, usually 50-75 
RPM as the mixture goes from ROP through stoichiometric, LOP and finally 
engine cutoff from lack of fuel.

If at a high altitude, 2000+ ft above sea level the rise should be even 
higher.

The interesting thing about running one EI and one mag is when you cycle 
the two systems at run-up!  I get no drop in rpm when I turn the mag 
off, and 100-125 rpm drop when I turn the EI off. Which in dual mag 
setup would indicate a sick mag, but in a ei/mag setup is perfectly normal.

Scott

-------- Original Message --------
Subject: REFLECTOR:  Elec Ignition - Idle cutoff
From: Kevin Baker <flykb at verizon.net>
To: reflector at tvbf.org
Date: 02/24/2012 09:39 PM

> Hi All,
> I wanted to do a quick check.
> I have a IO-360 with 1 elec ignition and 1 Mag. When one does an idle
> cut off we should still see a slight rise in rpm before the engine
> quits? correct?
> Like with normal 2 mag engines.
> Just wanted to make sure I should expect the same with 1 elec and 1 mag.
>
> Thanks,
> Kevin Baker
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