bolens h16 electronic ign --no spart--intermittant

I've had this tractor for years and it has always given me problems. I let it sit for a month and the spark reappears(?) I have replaced the switch which was bad but the situation is still there. The wires look good and I see no chafing. I hate to spend the $180 for an ign system if it is not the issue. I now have a project for the bucket if I can get it going. I used to mow my whole yard with this machine until this problem showed up. I checked the coil when the spark is there and it looks good.

Bosmech, I do live close to you and appreciate your offer. Let me know if you can work something out.

Thanks,
Mike