Chris Haynes
Well-known member
Is anyone using a Wico JEM Magneto? I am looking for tips and suggestions on using one.
Wico JEM Magneto
- Thread starter Chris Haynes
- Start date
BRENT in 10-uh-C
Well-known member
Not sure what 'tips' you are looking for, but I tried a Wico once and I picked-up horsepower when I took it off. 
The issue I had with mine was it was made for a stationary engine that basically ran at a constant speed, and so the timing is set for that. I didn't feel like I had any bottom-end power. Outside of that, just run a tighter spark plug gap and you are set. You will need a separate ignition switch that will ground the unit when you are ready to shut the engine off.
The issue I had with mine was it was made for a stationary engine that basically ran at a constant speed, and so the timing is set for that. I didn't feel like I had any bottom-end power. Outside of that, just run a tighter spark plug gap and you are set. You will need a separate ignition switch that will ground the unit when you are ready to shut the engine off.Jim Brierley
Well-known member
I'm not in favor of top-mount mags because they put too much of a load on the cam gear.