MT 125 ~ not starting

   / MT 125 ~ not starting #1  

Rool

Member
Joined
Sep 17, 2017
Messages
27
Location
Vancouver, WA
Tractor
LS MT125
119 hard hrs on her. Trouble free until today/yesterday.

Turn the key full lights and a click from the engine. To me it doesn't exactly sound like a solenoid but probably is. Turn the key another position and should turn over engine, but nothing, nada, zilch.

Yesterday this happened once, but then I tried it again and it started up. Today, not even able to turn over once.

Yesterday I had the pedal cotter pin slip out, so I had to pull the floor which required me to to pull the shroud which has the key and cruise control on it. I disconnected both to get it out of the way of me removing the floor. Reconnected it and it seems to be a new problem. I did check both fuses that are found under there and both were good.

Any advice or insight is much appreciated. :)
 
   / MT 125 ~ not starting #2  
Did you have any starting issues before removing everything?

Also, if you mean the Roll Pin for the pedals, I just had mine back out too, but put it back it without all that disassembly.
 
   / MT 125 ~ not starting
  • Thread Starter
#3  
No, never any issues before that.

Unfortunately, the way the tractor was parked It seemed to be the easiest way to re-install the pin. Would have been almost impossible to tap the pin in with a hammer without removing the floor.
 
   / MT 125 ~ not starting #4  
Check all safety switches, including the seat switch, clutch (if equipped), neutral, etc.
Find the ground connection to the frame and make sure its got a good connection.
 
   / MT 125 ~ not starting #6  
Make sure the PTO switch is off - might be that click you are hearing
 
   / MT 125 ~ not starting
  • Thread Starter
#8  
I'd suggest you go back through everything. Double check all the connectors you dealt with. Make sure you didn't pinch a wire somewhere.

I've taken it apart and put it back together repeating what I did 3-4 times, but still not even a sniff at turning over.
 
   / MT 125 ~ not starting #9  
Not sure if I understand where the PTO switch is?

The PTO switch is what activates the rear or mid output shafts. On my Xj, it was a little finicky at first. On mine it is yellow.
 
   / MT 125 ~ not starting #10  
just left of the throttle
 
   / MT 125 ~ not starting
  • Thread Starter
#11  
It's a dial type switch on the MT. I'll check the backside of that to make sure something didn't come loose. It would seem like the most obvious culprit.
 
   / MT 125 ~ not starting
  • Thread Starter
#13  
any luck?

Well, it looks like the starter is bad!? Was able to spin the pinion, but not acuate it? Seems strange for a starter to go out with only 119 hrs.

We've had such bad weather I didn't want to deal with it in the rain. I called the dealer and am waiting back to hear from them. I'll keep you updated.
 
   / MT 125 ~ not starting #15  
bad battery?
 
   / MT 125 ~ not starting
  • Thread Starter
#16  
Sooo, per description to dealer, he thinks it may be the starter. Got the OK from him to pull starter w/o voiding warranty. Took starter to Parts store, but they're having problems cross referencing the starter #s so they can bench test it. They don't have any Yanmar part #s. I'm in the city......

Was at Orielly's, Costless, and tomorrow I'll try NAPA. Below are pics of the starter.

20200522_183339.jpg20200522_183345.jpg20200522_183318.jpg20200522_183337.jpg
 
   / MT 125 ~ not starting #18  
Nope, Battery was 12.6v

Who's you dealer? BTW don't rely on what your multimeter says about your battery. Have it load tested at an auto parts store. Or Hook the meter up and turn the key and see if it holds above 10.5 VDC.
 
   / MT 125 ~ not starting
  • Thread Starter
#19  
Who's you dealer? BTW don't rely on what your multimeter says about your battery. Have it load tested at an auto parts store. Or Hook the meter up and turn the key and see if it holds above 10.5 VDC.

thanks for that info, think I'll give that a shot as well.

Ernst irrigation in St Paul Oregon is the closest that actually looks like a viable going concern.
 
   / MT 125 ~ not starting #20  
thanks for that info, think I'll give that a shot as well.

Ernst irrigation in St Paul Oregon is the closest that actually looks like a viable going concern.

Joel Naumann (Service Manager at Ernst)is good people. I bought my XR4155HC from him.

They have a pretty good parts selection too-not surprised that you couldn’t source the starter at a local auto parts place-one if the bigger NAPA warehouse stores might be a better bet.
 

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