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Re: Europa-List: Two ignitions on Rotax

Subject: Re: Europa-List: Two ignitions on Rotax
From: Rowland Carson <rowlandcarson@gmail.com>
Date: Sat, 20 Mar 2021 18:48:34

On 2021-03-20, at 14:48, rparigoris <rparigor@hotmail.com> wrote:

> Curious, is there some unwritten general labeling of Rotax 914 ignition A and
B to which one should be Left and Right?
> If not will use:
> Right=R=Retarded=B=24BTDC?
> Left=L=Less Retarded (Advanced)=A=26BTDC?


Ron, anyone - I have labelled my 912ULS ignition switches A and B corresponding
to the ignition modules. I used separate toggle switches rather than the typical
keyswitch because I seem to recall that someone said the 912S starts better
on one particular magneto.

However, I now cant find a reference to that assertion. I do find that the Rotax
heavy maintenance manual says that the 912 timing is the same for both ignition
circuits (26 BTDC), but different on the 914 (A 26 BTDC, B 22 BTDC) so I am
beginning to think that I misremembered!

Any observations on the topic welcome.

in friendship

Rowland

| Rowland Carson          ... that's Rowland with a 'w' ...
| <rowlandcarson@gmail.com>            http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson      Facebook: Rowland Carson



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