Belarus 920 - starter motor will not activate

[ozebee]

After not being used for some 3 months the starter motor will not kick in. Batteries are all OK but no action from starter motor - not even a click. What should I be diagnosing first and how. How do I jump start it bypassing the ignition switch? How can I test if the solenoid is getting power? Is the solenoid jammed and if so how do I free it up?
Any help will be greatly appreciated.

 

[Roadworthy]

For the solenoid to do anything it has to be getting power when you turn the key. If you know the location of the solenoid put a voltmeter on the terminal from the key and see if you have voltage when the key is turned. You could have a defective or dirty key switch or a loose wire between there and the starter. Mice like to chew wires, too.

 

[Industrial Toys]

I often use an old style pointy testing light. The brightness of the bulb can tell you more than a meter. Clip it to a good ground, and see if you have power coming from your battery at the starter.

The thing is, that if you have a high resistance connection, a digital meter will still read full battery voltage which can be very misleading if you don't understand electrical theory.

 

[arie515]

Also check Belarus forum MTZ Tractor Talk - MTZ & Belarus Tractor Forum

 

[WranglerX]

I often use an old style pointy testing light. The brightness of the bulb can tell you more than a meter. Clip it to a good ground, and see if you have power coming from your battery at the starter.

The thing is, that if you have a high resistance connection, a digital meter will still read full battery voltage which can be very misleading if you don't understand electrical theory.

Yeah... I have $500 worth of digital and analog meters and the point test light is my first go to on non computer automotive/tractor circuits....

To OP, as for troubleshooting start issue, put test light on terminal/wire that energises solenoid and see if you are getting "power" to energise solenoid ... That should tell you which way to troubleshoot....

Dale

 

[crbearden]

After not being used for some 3 months the starter motor will not kick in. Batteries are all OK but no action from starter motor - not even a click. What should I be diagnosing first and how. How do I jump start it bypassing the ignition switch? How can I test if the solenoid is getting power? Is the solenoid jammed and if so how do I free it up?
Any help will be greatly appreciated.

I noticed this old post. did you get your problem solved. I have a few of those Belarus tractors.