I have a Honda vertical shaft lawnmower. it will not start, will not pop with starter fluid. I used a spark plug tester and got nothing. No visible spark even at night. I figure either a new coil or a flywheel key is sheared.
On the old points engines a sheared key would mean no spark since the magneto voltage and points opening where out of range of each other.
On a modern no points engine I think the coil would still make a spark wouldn't it? Just the spark would be out of time and no fuel mixture would be in the proper state to ignite.
I am wondering if no spark definetley means the coil is bad or could it still mean a bad keyway so the flywheel and magneto has lost time with the points, or what passes for points these days.
Bil lD