312-8 won't start

[brushbuster 0]

Dead short in the ignition wire. She's off and running again.

Edited June 25, 2015 by brushbuster

[Flyn Tiger 0]

Hey guys! New to this site and is my first post.

I have got my Dads old Wheel horse, I think its the 312-8 around a 85 model. It has the Kohler Mag 12 motor, 494 hours on it and my Dad bought it new. This thing is still in pretty good shape, my Dad used to wax it if that tells you anything. lol  I keep it around because I grew up on it and it belonged to my Dad and when I mow it is our time to reminisce about good times when he was alive.

My problem is simulair to Wrightorchard's I think.  Last week it was running like a top but when I would start to kill the motor it would continue to run. Got the motor off by turning idle down and choking. Sometimes the switch would work, sometimes it wouldn't. Yesterday it laid down on me. Turn the key and NOTHING happens. It had done this before and I could sqirm on the seat and it would start, not this time. Volt meter shows about 12-13 and the seat switch light comes on. None of the other lights come on even with the test switch. First I replaced the ignition switch, nothing. Can't find a seat switch, and I had the old one tested and it was bad so I cut the connector and wired it direct even with the ground. Nothing. All wires to the starter and around seem to be ok. Nothing.  What else do I need to do?  Don't know much about these things and the one place I had that would work on it has closed. They loved the ole thing....  Anyway I have had it 3 summers now and the first 2 were plagued with carb problems, now this. I hate to keep spending money on it and I need something reliable so I can get my yard work done but I hate to get rid of it too. What else do you suggest I look at?

Thanks alot,
Flyn Tiger

[gwest_ca-(File Mod) 11,040]

If you have a Magnum engine is should not be a 1985 or 1986 model. 1987 was the first. See if you can fine the model and serial number on a decal under the seat on the rear fender pan so we can look up the correct wiring diagram.

Garry
 

[Flyn Tiger 0]

Hey guys! New to this site and is my first post.

I have got my Dads old Wheel horse, I think its the 312-8 around a 85 model. It has the Kohler Mag 12 motor, 494 hours on it and my Dad bought it new. This thing is still in pretty good shape, my Dad used to wax it if that tells you anything. lol  I keep it around because I grew up on it and it belonged to my Dad and when I mow it is our time to reminisce about good times when he was alive.

My problem is simulair to Wrightorchard's I think.  Last week it was running like a top but when I would start to kill the motor it would continue to run. Got the motor off by turning idle down and choking. Sometimes the switch would work, sometimes it wouldn't. Yesterday it laid down on me. Turn the key and NOTHING happens. It had done this before and I could sqirm on the seat and it would start, not this time. Volt meter shows about 12-13 and the seat switch light comes on. None of the other lights come on even with the test switch. First I replaced the ignition switch, nothing. Can't find a seat switch, and I had the old one tested and it was bad so I cut the connector and wired it direct even with the ground. Nothing. All wires to the starter and around seem to be ok. Nothing.  What else do I need to do?  Don't know much about these things and the one place I had that would work on it has closed. They loved the ole thing....  Anyway I have had it 3 summers now and the first 2 were plagued with carb problems, now this. I hate to keep spending money on it and I need something reliable so I can get my yard work done but I hate to get rid of it too. What else do you suggest I look at?

Thanks alot,
Flyn Tiger








Ok was guessing on the yr model. He had two of them and could not remember when he got the second one.

Anyway, the ID number is 2112K806    38703.

That was the only number under the seat.
Thanks for the quick reply.
Wendell Chenault, aka Flyn Tiger




 

[WNYPCRepair 1,918]

That should be a 1989

And this should be the wiring diagram

 

Tractor 1989 312-8 Wiring Detailed #492-4509.pdf

Edited July 12, 2015 by WNYPCRepair