Have 12+ volts, but still- starting problem

[Lawnranger]

So does mine. When it gets to R & R that's when we can have a beer. Post the unit model numbers.

:laughing::laughing::laughing::laughing: LMAO

 

[rigoletto]

LOL!! You guys have a great sense of humor, as well as the grace to continue with your help!

Now, back from work, time for an espresso, then look for the schematic/tech info......

 

[rigoletto]

OK, so far, lets start with this diagram I found
Parts and Diagrams for MTD MTD Mdl 130-650G139

It has a handy "zoom in" button to zoom in on the switch.

My Ign switch is part # 725-0267, (I do have my MTD illustrated parts booklet!)

Also, I removed the switch, brushed it well, and on back it says M, S, L, B, and G.

I figure :

M is Magneto(?)
B is Battery
S is starter
L is .....dont know
G is ground

MTD mod # 13A4667 F118, S# is 1C048C 20044 (the 1 could be an I (??))

I am good with resistance checks, etc. have a v good multi meter.......anyone have ohms values ?Also, what do I contact to get values....
Im also looking at the safety switch to study........meanwhile, any guidance whilst Im doing this is appreciated.

 

[rigoletto]

More info: S is not starter, but solenoid, right Professor?
M is magneto kill?
L is lights (by the way, lights quit years ago- would be nice to get them working again.....)

gonna go out there and try probing around....

 

[rigoletto]

Not sure if this matters, but so far, ignition switch key to start position , test light shows voltage at the S terminal/blade. But during same position, no test light at small blade terminal on solenoid. Hmmmmmmm, (scratching 2 day old beard stubble, ).......

 

[Rivets]

Now we're getting some where. Last test shows that you have a safety switch problem. Make sure that the parking brake is set, tranny in nuetral, PTO off. Follow the wires to the next connection and check for voltage in and out. This wire will go to one of the safety switches. Take your time and have patience, these electrical problem troubleshooting plans may take minutes or hours. Been there and done that thousands of times with my students. Don't trust you eyes, also check the wires with your finger tips.

 

[EngineMan]

Don't forget to check with you're multimeter the continuity in the wire from (s) on the switch to the small wire on the solenoid by taken off both ends of the wire, Ohm's should be low...!
is the switch something like this one..?

Sorry Rivets got there before me..!

 

[rigoletto]

Now we're getting some where. Last test shows that you have a safety switch problem. Make sure that the parking brake is set, tranny in nuetral, PTO off. Follow the wires to the next connection and check for voltage in and out. This wire will go to one of the safety switches. Take your time and have patience, these electrical problem troubleshooting plans may take minutes or hours. Been there and done that thousands of times with my students. Don't trust you eyes, also check the wires with your finger tips.

OK, Riv. You say safety switch problem- that switch has ben nothing but trouble for years. Had to stuff some sheet metal down there between the spring base and the switch "pin" as I copuldnt get the engine to start otherwise. seems like it needed an extra 1-2 mm of metal to "activate" it. But YEARS ago, this did the trick. maybe now, its goten worse.

Anyway, maybe we are getting somewhere then, if weve focused on the safety........going out there again.

Thanks, Riv

 

[rigoletto]

Don't forget to check with you're multimeter the continuity in the wire from (s) on the switch to the small wire on the solenoid by taken off both ends of the wire, Ohm's should be low...!
is the switch something like this one..?

yes, something like that one- just not the exact sequence, but has the same pins included. I will also , in addition to Riv's advice/steps, do your continuity test. But, WHY does the small terminal on solenoid have a stripped orange/white wire which does not go anywhere else (such as ign switch, or safety switch)? S terminal on ign switch is solid orange. makes no sense...

Dang confusing.

 

[Rivets]

EngineMan is half right, sorry, but if a safety switch is the problem, that reading will be infinite due to the fact that a switch is open.