lawn tractor wiring

[sofa king]

Is anyone good with lawn mower tractors? I have an older Murray 42” mower that seems to have a wiring issue all of a sudden. It appears that someone already wired it before, not 100% sure but the connectors & stuff used look kind of shady. I don’t have a manual for it, and since it is older and no longer available I can’t ask questions about it.
There are so many safety switches that keep it from doing A,B,C…I’m a little overwhelmed right now after trying to draw something up.
It has a seat switch, clutch, blade engage, gear, maybe something else. All these need to be met in order to start or keep it running.

 

[glh_turbo22]

My craftsman one was the same way. Does yours have a single square automotive relay near the battery? On mine every time I went to engage the blades the engine would shut off. I pulled that relay and now they turn on every time and I can even hop off the seat if I need to pick a kids toys up in the middle of the yard lol.

 

[rdy2rac]

what engine? model number?

 

[sofa king]

Murray - 42819X8A
MFG date - serial, 95261 - 149720

This specific one has a Briggs and Stratton, I believe a 15 hp.

 

[sofa king]

My craftsman one was the same way. Does yours have a single square automotive relay near the battery? On mine every time I went to engage the blades the engine would shut off. I pulled that relay and now they turn on every time and I can even hop off the seat if I need to pick a kids toys up in the middle of the yard lol.

It has a solenoid just like my car, but the ignition trigger wire, usually 12v from the key switch doesn't seem to work.
I need to get back over there with a meter and some basic tools, jumper wires and a few other things would make it easier to troubleshoot.

 

[rdy2rac]

Murray - 42819X8A
MFG date - serial, 95261 - 149720

This specific one has a Briggs and Stratton, I believe a 15 hp.

reason i asked was i have a wire harness from a 20 hp murray tractor.

i did find this that might help
http://www.ereplacementparts.com/murray-42819x92a-riding-mower-parts-c-17887_17944_289751.html

 

[sofa king]

reason i asked was i have a wire harness from a 20 hp murray tractor.

i did find this that might help
http://www.ereplacementparts.com/murray-42819x92a-riding-mower-parts-c-17887_17944_289751.html

Thanks for that! I will check the engine the next time I get over there. I don't think its a 20 though.
On other mowers I have or had, I can find a wiring diagram, but not so much luck on this one yet.

 

[rdy2rac]

there's a wire diagram in the like i posted

there is also a great lawn mower salvage yard in Lapeer up by Lapeer dragway

 

[sofa king]

I messed with it last night.
What I found is that there must be a wire broken between the ignition switch and solenoid.
The trigger wire on the solenoid is still on it, but must have disconnected from the ignition.
I turned the key to ON and jumpered the trigger to B+, it started right up.
I'm going to try and track that down and just replace the wire.
Hope for the best...
Thanks for the info! If I don't get this, I'll probably get a new switch and try to clean up the wiring.

 

[sofa king]

Oh yeah, this is good!
http://www.ereplacementparts.com/images/murray/42819X92A_WW_4.gif