starts when release starter key

[tony58]

B7610 with 400 hrs.It usually starts pretty easy when cold.Harder to restart with warm engine. ---When it does start its a split second after you release the key.Hardly ever will start while cranking,only when key is released...Runs perfect when running after starting.Clean air and fuel filter...

Thanks Much

 

[North Idaho Wolfman]

Could be due to a week stop solenoid, some models get a voltage jolt when you let off the key, and pull in harder to let fuel flow.

 

[helomech]

Mine MX5100 was acting very similar it was the key switch. Fiddle with the key and see if you can make it act up. I had to hold pressure on my key to get it to start, after it started I could let the key go.

 

[tractor2017]

I would put connect a volt meter or test light to the shut off solenoid , and keep an eye on it why cranking.

 

[tony58]

Thanks for the help.Two observations:1. I put the battery on a trickle charger until battery reached full charge.It started right up on cold start.Wouldn't restart until cool down after running 5 min.2.Back when the tractor was newer,when you turned it off you could hear a click after 10 seconds or so.It doesn't make that shut off click any more.

 

[Tooljunkie]

Sounds like a sticky fuel cutoff solenoid. Im guessing that its a 3 wire solenoid,1 ground,1 hot while key is on and 1 engages with the starter. Testing the wires will tell all.

 

[Daren Todd]

Check your battery cables. Make sure they are clean on both ends. Make sure the terminal ends aren't loose as well. Especially the ground. Usually when a unit won't start while cranking but will as soon as the key is released, it's a connection issue. Seems like one of your cables could be losing continuity once it gets warm/ hot.

Starter is the first place power goes too, and when the connection is hinky, it will hog the voltage causing a voltage drop to other areas that require voltage on the starting process.

 

[tony58]

Thanks again for the replys...