Craftsman tractor intermittent start problem
I've got a Craftsman 917.255470 that intermittently won't start. Sometimes when I sit down on the seat real hard, it'll start. Sometimes when I push up on the mower engage lever and let it slam down, it'll start. Sometimes when I just push the tractor a few feet, it'll start. Very annoying. Manual says there are three safety switches: Clutch/Brake (pedal up), attachment clutch (clutch off) and seat occupied (not occupied). I don't think it's the seat occupied switch. Where are the other two switches located and how can I test them? Thanks.