Small Engines (Lawn Mowers, etc.): No spark, sears craftsman lawn tractor, craftsman lawn tractor


Question
QUESTION: I have a Briggs 12Hp engine (model 28407; type 1026-E1; code 980205ZA) on a Sears Craftsman Lawn Tractor (Model 917254520) and I don't have a spark to the spark plug. I've replaced the solenoid, the starter and the battery has a full charge. When I turn the ignition key, the engine's flywheel just spins and spins. When I have turned the engine over, I've held the wire close to the tip of the plug and I see no spark (nor feel anything through the insulation). I also see no spark with the plug out of the engine when I turn it over.

I am reasonably handy but no mechanic so please bare with me. Anyting electrical I have a mental block about. I have a repair manual and it seems to suggest a magnetron and coil problem??? But don't let me suggest whar the problem could be.

I know where to order parts so don't necessarily need that information but part numbers would be helpful.

Thank you!

Bill

ANSWER: Bill
You may want to check to see if a safety switch may be causing the problem.They have several of them and you can by pass the switch to see it that is the problem. There are switches in the following places seat ,brake,blade engage. Check those out first and then go to the magneto. You can call sears to get the part #'s for the coil.

---------- FOLLOW-UP ----------

QUESTION: Where is the Control Bracket on this lawn tractor? And where is the Shut Off Wire at the Coil? Also, could I bypass the switches some way to narrow down the problem? And if so, could you provide some details.

Answer
Bill
The key switch is the coil shut off. yes you can try by-passing some of the switches,unplug the switches and stick a small piece of wire in the socket to make the connection if it starts put it back the way it was and if it doesn't start then you have a bad switch or wire.