Light Aircraft Association

I am fitting the new firewall to a Jodel 1050 as part of a Rotax 914 installation. I am wondering if I should keep certain types of electric cable separate from the others. For example, should the ignition earth wires have their own pass though (even though they will be shielded cables) or can they ...

Thank you very much for your very detailed reply Ian. I could not have hoped for better. I shall study it all some more.
William

I hope someone can help me to understand the Wiring Diagram on page 3, section 24-00-00 of the Rotax 914 August 01 2019 Installation manual. I am installing this engine without the external alternator. Here goes: 1.Where does the master switch (34) go in the diagram if there is no external alternato...