C-141, no start at the key but...

[nyquil junkie 305]

but... put power to the S post on the solenoid, it starts and runs. 

I checked the safety switches, the PTO the clutch (its a stick shift) and the seat. all have continuity when ON.

 

Now while its running, if you are in the seat, and start the PTO, all good keeps running. Stand up while its running w the PTO on, it turns off. Just like it should.

 

I checked continuity along all the wires, they all are intact. 

 

When you turn the key to START, only @8v goes to the solenoid, and you get a weak tick from it.

 

Now, this points to a bad ignition switch, correct? (before I go buy one.)  The START position of the key should send a strong 12v to the S post on the solenoid if I read the charts right...

Sometime clicking the key to start actually sends nothing to the S post. Most of the time its less than 8v.

 

My thinking is the ignition switch is not making good contact in there.

 

If Im on the wrong track, feel free to point it out...I'd appreciate it.

 

 

[WHX?? 57,032]

Double ... No triple check grounds.

[ebinmaine 79,269]

You're on the right track but remember you're dealing with a DC system so your grounds are going to be extremely important. I would highly recommend,before you spend any money,  that you go through and clean all your terminal ends very thoroughly. Double check your ground that goes from the engine to the frame as well. That's been known to be a problem on those models.