How to replace a starter Solenoid on a riding lawn mower and how to tell if it is bad.

The back of the engine compartment and the mower's frame are good places to look for the solenoid.The solenoid is a cylindrical or square palm-sized black device that is bolted to the mower frame or the back of the engine compartment.

Where is the solenoid located?There is a starter on the ground.The solenoid can be at the end of the starter or on top of it.The positive cable is connected to the starter.

The solenoid can be found by tracing the red cable from the battery's positive terminal to where the other end of the cable is attached.

The key should be turned to the On position.The large terminal posts are where the thick red wires connect to the solenoid.Touch the metal shaft of the screwdriver to the large terminal at the same time.The solenoid should be replaced if the engine starts.

There is a starter control wire, a positive battery cable, and a thick wire that powers the starter motor in a typical starter solenoid.

The engine should be placed on a hard, flat surface.The positive wire from the battery will lead into the solenoid.The spark plug wire needs to be removed.The negative battery post has a negative lead connected to it.

The black box is connected to the battery by a red wire.You can find that wire by tracing it to the solenoid.There are two large posts.The red wire is attached to one of the posts, and next to it is a wire that leads to the starter.

There is a small magnetic device in the starter motor.When you turn the key on, the battery sends a small charge to the starter.A larger amount of current is sent to the starter motor when the switch is closed.

It can be difficult to diagnose a riding lawn mower that has a bad starter.A mower that does not respond to attempts to start, a cranking noise without engine turnover, and a clicking when the ignition button is pressed are all examples of a bad starter.

The spark plug ignites the air mixture and fuel in the engine's cylinder to start the tractor.A blocked fuel filter is the last problem.This can happen from bad or dirty gas.If you want to replace any of these parts, you need to rain the old fuel from your tank and replace it with new fuel.

A section of 18-gauge wire should be run from the "B" terminal on the starter motor.To crimp a blue ring terminal on each end of the wire, you need to strip it from the end.Use the open-end wrench set to connect the wires.

To test the starter ignition switch, you need to connect one end of a jumper wire from the battery's positive terminal and the other end to the engine starter solenoid.The starter ignition switch needs to be replaced if the engine starter motor turns over.

The screwdriver is the bridge mechanism and not the jumper cables.If the space between the two electrical posts is large enough, the starter and solenoid can sit very close to each other using the screwdriver as a bridge.Instead of a key, use a flat head screwdriver.

The average cost to diagnose and replace one is between $150 and $400.Depending on the make and model of your vehicle, you can expect to pay between $15 and $100 for a single transmission shift solenoid.A pack can cost a lot.

The screwdriver or other metal implement can be turned into a manual switch by jumping the starter solenoid.You can burn out the starter motor if you don't get the screwdriver off of the contacts.Unless you absolutely have to start the vehicle, don't do this procedure.

To overcome a faulty starter relay or ignition switch, you can use a big screwdriver and touch both the positive starter terminal and the solenoid terminal on the starter.The starter terminal is always connected to the battery positive terminal.