I have a rally riding lawnmower. I think its from the mid to late 80's. It's got a 12hp briggs and stratton motor. The 5 prong ignition is rusted out and I was able to pick up a 4 pronger. I'm wondering if I can use this ignition. I was hoping I could just bypass all the safety switches and get away with a less prong ignition. thanks for any advise. I'm not sure of the model the hood is gone and it has no lights anymore. It has a 38" cutting deck on it. I'm hoping to get the ignition as basic as possible no accessories or anything just start it. Desperate my grass is a foot tall.
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
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.