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1987 25hp intermittentno spark

J

jayii

New member
"I've been reading forums

"I've been reading forums about this condition, Checked readings on stator, found low ohms, replaced stator,still no spark. Yellow black kill wires are open at run, grounded at off, disconnected kill wires, still no spark. Trigger ohms ok, replaced switch box, sometimes will fire but still no run. What am I missing?"
 
"Pull the plugs, stick them on

"Pull the plugs, stick them on the wires, ground them to the block, and pull it over a dozen or so times. Check for spark on each as you do. Then clean the plugs, reinstall them, and see if she'll go.

Jeff"
 
Pulled both plugs and blew the

Pulled both plugs and blew them off with compressed air to dry off the unburnt fuel. Grounded them and cranked over engine and had spark on top cylinder. Changed green/white and green/yellow wires on coils and spark moved to bottom. Changed wires back spark moved back. Bad Trigger?
 
"Thanks Jeff, so what would ca

"Thanks Jeff, so what would cause a brand new spark box to go bad? I don't want to put another box on the motor and have it go bad too. I saw in an old thread on this site that if you switched the trigger leads and the spark moved that is not the switchbox but the trigger. Your thoughts?"
 
After must frustration and sou

After must frustration and soul-searching I re-read the troubleshooting guide that came with my new spark box. I pulled my flywheel and to my consternation and amazement I found one of the magnets had loosened up and moved. Can I glue it back in place with epoxy or should I try to find another flywheel?
 
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