I am renovating an old 548 mower to use as a garden tractor. The ignition switch is broken and I wish to replace the key ignition switch with a toggle switch for 'on' and a press button switch for 'starter.

The key switch fitting has 4 contacts with wires connected comprising two connections with red wires, a black wire that serves the ampmeter display, and a twin connection of yellow wires which appear to be safety switches. Please can you advise me of which wires I need to connect to my on/off toggle switch and which to my push button starter switch and any bridge between the two.

Graham, August 2008

Just replace the broken ignition switch. That way the wire connections wll take care of themselves, and it won't cost much more than your toggle switch and button.

phil_saunders@bigfoot.com

Phil Saunders, August 2008