Hi all
I have recently been given a one owner 09M7, B&S 12hp engine, electric start, which I am recommissioning. It hadn't run for 8 years since the owner died, when it was running fine. Had a stuck open exhaust valve, now sorted. I put a new battery in and it spins over nicely - or rather, it did.
Ran great for about half an hour and then conked out. Clearly electrical as when I try to start with the ignition switch, nothing happens.
I found the above posts illuminating which is why I am posting here, as the wiring degram is the same as for the 09J6.
Mine has a fuse in the wire from the live side of the solenoid to the B terminal, and that's fine. always has power to B with ignition off or on.
I have 2 questions:
What's the deal with the micro switches? Mine has 3, all of which I have tested:
1. under the seat - normally on and therefore earthed to chassis and sitting on seat opens the circuit.
2. foot switch which is normally open and you close it with your foot.
3. the cutter lever micro switch which is 4 pole, with on normally open and closed when the lever is back, and one normally closed which opens with lever back. I am unable to tell which is which on the wiring diagram, which looks like a kid drew it.
I removed the ignition switch to test it. It has 5 terminals (G, M, B, S and L), but only 4 wires, with L left vacant.. I suspect it has failed as when i test in the 3 different modes I get the following results:
1. switch off, with power to B - all other terminals dead.
2. switch on - power only to L (the unused terminal). All others dead.
3. starter position - power only to S, all others dead.
I would have thought that there should have been at least one other terminal live in the "on" position as otherwise the on position is doing nothing - and if it's already off , you wouldn't be able to stop it by turning off the ignition.
Any help gratefully received.
Thanks
Doug
