982 Stopped working

[edale]

Hey. I was cutting some tall grass with my Cub Cadet 982 with an Onan engine and it started getting really hot. I stopped mowing and let it idle for a few minuets then shut it down. It will not start now. I drug it into the shop and I can't get any spark. any suggestions as to what might be wrong. What did I fry?

-everettdale

 

[rbedell]

Everett:

Attached, is a Wiring Diagram to aid you in diagnosing your problem.

Things to check are:
(A) The 15A Fuse
(B) The Seat Switch
(C) The PTO Switch

If that all checks out OK, then check....
(A) The Condenser
(B) The HV Coil

 

[edale]

All the safety switches (that aren't bypassed

) are fine and the fuses are good. The engine cranks with no trouble. I'm just getting no spark. I assume that "HV coil" stands for High Voltage coil and I was going to check it out, but I don't really know how to test it. Do I look for resistance across the windings? and if so what reading should I get? And how do you test the condenser.

thanks for the help

-everettdale

 

[rbedell]

Everett:

The condenser can be checked if you have a Capacitor Checker. If not, they are cheap enough just simply replace it.

I have NO information on the Onan HV Coil spec's.
I would "assume" that it is similar to a Kohler double HV coil as found in a 782. Here is a Diagram for that.....

There is going to be some resistance on the Primary Side of the Coil ( + to - ). Also a resistance value for the Secondary Side ( - to the Tower). No resistance or infinity to case ground.

That is the best I can tell you without a Onan Manual.

 

[edale]

Thanks for the help. But guess what

I removed the air cleaner and took the metal cover off the points/condenser and had a look inside. everything looked normal, so I decided to crank the engine over to see if the points were moving correctly and the engine fired right off. Scared the c**p out of me.

as it turns out the wire from the coil to the points was worn or melted through and was grounding on the cover. problem solved.

I love it when it's a 28 cent fix.

-everettdale