Two dead mowers

tyson1790

Member
Joined
Aug 25, 2012
Threads
4
Messages
10
I have a poulan riding mower, and an MTD. Neither of which will run properly. If i bypass the wiring, and go directly from the battery to the starter, they will turn over. I was able to get the grass mowed today by going that route on the MTD, and starting it. After I was thru mowing, and parked it, it would not do anything when I tried the key switch. I would like to get it back running on it's own soon. I replaced the key switch, and nothing. I disconnected the seat switch, and nothing. When I try starting it with the switch, it will make a clicking noise that appears to be coming from under the mower, back towards the back. Does anyone know what I might could try to get the mower to start using the switch again, not having to jump it. The poulan is doing the same thing, but it's my back up, so i'm not as concerned about getting it going right away. Thanks
 

pugaltitude

Lawn Addict
Joined
Jan 11, 2012
Threads
7
Messages
1,142
Sounds like its a solenoid problem.
Solenoid is usually under the body work at the battery (depends on model)
Remove the battery and turn ign on and off and listen for the click.
Maybe that the solenoid is energising but contacts are corroded.
 

ILENGINE

Lawn Royalty
Joined
May 6, 2010
Threads
51
Messages
11,261
The problem is most likely the solenoid. the problem with the newer MTD's is the solenoid is in a location that you can't get to without removing the battery. Makes testing a pain in the rear.
 

Lawnranger

Well-Known Member
Joined
Apr 18, 2012
Threads
6
Messages
671
Here is a way to diagnose a no-crank condition put together by a few of the forum members to help in situations like yours. This might help. Let us know how you are doing.


Electrical* problems can be very easy or very difficult, depending on four things.
1. * How well you understand basic electricity.
2. *What tools you have and know how to use.
3. *How well you follow directions.
4. *You don't overlook or assume anything and verify everything.

Remember we cannot see what you are doing. *You are our eyes, ears and fingers in solving this problem. *You must be as accurate as you can when you report back. *The two basic tools we will ask you to use are a test light and a multi-meter. *If you have an assistant when going through these tests it would be very helpful. *These steps work the best when done in order, so please don't jump around. *Now let's solve this problem.

First, check the fuse(s), check battery connections for corrosion (clean if necessary) and *voltage - above 12.5 volts should be good.*

Second, check for power from the battery to one of the large terminals on the solenoid. *One of the wires is connected directly to the battery and has power all the time so one of the large terminals should light a test light or show 12 volts on a meter at all times.*

Third, *check for power at the small terminal of the solenoid while depressing the clutch/brake pedal and holding the key in the start position (you may need an assistant to sit in the seat to override the safety switch). If your solenoid is a four wire solenoid, check both small wire terminals as one is ground and the other is power from the ignition switch. *If your solenoid is a three wire solenoid, make sure the solenoid body is not corroded where it bolts to the chassis of the mower as this is your ground path back to the battery. *If in doubt, remove the solenoid and clean the mounting area down to bare metal. *If there is no power to the small terminal then your problem is most likely a safety switch, ignition switch or in the wiring.*

Fourth, check for power on the other large terminal of the solenoid while holding the key in the start position (you may need an assistant to sit in the seat to override the safety switch).*

Fifth, check for power at the starter while holding the key in the start position (assistant again).*

Sixth, check your ground circuit back to the battery.

After you have gone through each of the above steps, let us know what happened when you did each step. *At that point we will have great info to tell you how to proceed. *Remember you are our eyes, ears, and fingers, so please be as accurate as possible.

Be as specific as possible with voltage readings as this will help diagnose your problem quicker. *If you do not know how to perform the above checks, just ask and I will try to guide you through it. *Youtube also has some videos and as you know a picture is worth a thousand words.
 
Top