How can I replace my 5 prong ignition?

Not really. All 5 prongs are used ;-

Battery
Ground
Magneto
Solenoid
Load

I guess you could do without the 'Load' (which is a swiched live feed), but it depends - this feeds stuff like the electric blade clutch if fitted, and it would also depend on how your 4 prong switch is internally connected. Basically, you need ;-

Mag connect to Ground when switch is OFF, otherwise OPEN
Batt connected to Solenoid when turned to START
Everything open when switch in 'Run'

With the 5 prong switch, Batt is connected to Load when in 'Run'

The correct switch won't cost much - can supply at £10 if you're desparate!

phil_saunders@bigfoot.com

Phil Saunders
June 2008