My Wheel Horse tractor starter won't engage

-If starter spin it self or you head it click but not spin the engine. >> Need new starter.
-If no click or not thing at all>>>Check battery cable from battery to starter and the line from the ignition to the solenoid.

Good Luck

Mai

i cant dope out that symptoms.

does it crank or not. be clear there.

no car starts (but my 6sp) if it dont crank.

on A/T cars cranking is a first thing. so does it.?

Solenoids do not spin, the stroke only , it a linear motion.

the Sol. moves the pinion and the main contactor switch only.



my guess is the Starter spins and the crank don\'t spin,

you hear the starter motor spin up, it sings. like bird.

that means the starter /solenoid are bad. (crude)

if the battery is good and or jumper starting off a running car.



It can just be a dirty starter pinion, clean it , repeat.

fixed many for this. i have.



battery cable lugs clean, and good. no green rust.

bad cable usually just make a loud THUNK sound. no spin.

It is not uncommon for a safety switch to get misaligned and not work correctly, also it is not uncommon for a switch not to work even if it is engaged.
You need to check all the switches that must all be properly aligned and engaged in order for the engine to start. As for the light blue wire, I am not sure 100% however typically blue wireds on wheel horse equipment are used in the ignition system. Depending on your model it may be the main ignition power line which runs from the ignition switch (S) connection or (start) connection, then goes to PTO interlock switch, then goes to the Pedal interlock switch, then finally to the starter solenoid. Which sounds like where you have to look because along this blue wire at many points and switches, there is a problem either with a connection (the lose blue wire) or a bad interlock switch along it's way to the starter solenoid. You should also check the PTO interlock switch because it also is connected to a kill relay that will prevent the engine from starting id it is faulty (that light click your hearing, the starter solenoid would be a louder click).
There is a typical ignition service manual available at http://www.mywheelhorse.com/graphics/file/Engines/Engine-Electrical_Service-Manual.pdf It has the typical wireing diagram and all the information you will need presuming you have enough electrical background to use a multimeter.
The website at http://www.scribd.com/doc/47347708/Toro-wheelhorse-Demystification-Electical-wiring-diagrams-for-all-WheelHorse-tractors has diagrams specific for each model but you have to make an account (free) to use the website, and lastly the website http://www.mywheelhorse.com is a invaluable website for anyone who owns a Wheel Horse. Let me know what you figure out!

Try replacing the starter solenoid. If that doesn't do it, try replacing the whole starter.

It is possible to have the solenoid go bad but not while the tractor is running as it is only used to engage the starter. It sounds like the wires to the starter is shorted out. I would run a hot wire to the solenoid from the battery to the solenoid and see if it will start. Just be sure everything is grounded. If the ground cable on the battery is ok you should not have a problem with running a hot wire to the solenoid. Just touch the hot wire to the starter and then release it when the starter engages. Hope this helps.

Maybe one of the pressure switches is bad

You have two safety interlocks that must be "made" before the engine will start.
The brake must be engaged.
The blades must be disengaged.
There may be a neutral safety too.
All of these switches must be closed to get ignition.
Gary.

I assume you have a Kohler engine and a standard original Wheel Horse wiring.It sounds as though either your solenoid is defective, or the solenoid has a bad earth. If you have current arriving at the positive side of the solenoid from the key when in cranking position and you're sure the solenoid is grounding properly then it's the solenoid itself. As a check you could flash the solenoid and your motor should crank: MAKE SURE THE MOWER IS IN NEUTRAL AND BLADES DISENGAGED. This will prove that the starter motor is good. It's then a matter of replacing the solenoid...a straightforward bolt job, please disconnect the battery as a grounding flash when refitting the solenoid could cause generator failure.

Check to see if you have the wires on the starter or the wires on the battery reversed. This will cause the starter to spin in the wrong direction. I've accidently hooked my battery up backwards and this happened. The spinning of the starter causes the gear to go up. If it spins the wrong way, nothing happens.