John Deere

Mower isn’t engaging when I pull the “on” switch to engage the blades. The fact that there is no sound whatsoever, and the mower belt is in place and correctly tensioned, suggests an electrical problem of some kind, but I can’t tell where the wire controlling the mower clutch is connected…any thoughts?

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Belt-the number one cause for your blades not to engage is that your belt is either stretched or loose causing it to slip or fall off completely. Belt could have snapped also. When you are trying to process too much grass/leaves they could pack up under your deck and push off your belt.
If the PTO clutch is not receiving power, the clutch solenoid is defective, or the clutch itself is worn out, the blades will not engage. Since a PTO clutch is not repairable, you will need to replace a broken or worn out clutch with a new one.
Check the fuse

The fuse on most riding mowers is connected to the small red wire that connects to the starter solenoid post. Check the fuse and replace it if it`s blown. If you replace the fuse and it continues to blow, you`ll need to find the short in the wiring or component that`s causing the fuse to blow.

Failure of any mechanical component, a broken hose, or clogged filter will cause tractor hydrostatic transmission problems. But the most common issue will be the oil itself. In the transmission section of your operator`s manual, you`ll find a section that covers oil viscosity.
If the PTO clutch is not getting power, if the clutch solenoid is defective, or if the clutch is worn out, the lawn mower blades will not engage. The PTO clutch is not repairable—if the clutch is defective, you must replace it. Need help finding your model number? The PTO switch provides power to the PTO clutch.
If your clutch won`t engage, It usually means that the engine idle speed is different to the clutch idle speed. This can result in damage. To correct this, change the spring or change the engine speed to below the clutch idle speed. If damage is excessive it will require the repair or replacement of the clutch.
The most common reason cars don`t start is a dead or faulty battery. Even though most cars run on gasoline, they all require electrical power to function. The starter that cranks your engine to start requires an electrical signal to fire. If something`s wrong with your battery, your car engine won`t turn over.
Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn`t work, you might need a new fuel filter.
To fix a riding mower that won`t move forward or reverse, you should fix the battery, check for the air filter and carburetor, inspect the transmission for damages, replace the damaged drive belt, and inspect the spark plug. You must also replace the tires, and adjust the wheel position.
If you just hear a whirring sound like the starter motor is spinning without affecting the motor, then the solenoid is either broken, or there`s a wiring issue on the starter itself. Options are: have the starter rebuilt, replace the whole thing, or see if you can track down the wiring issue on the starter.
Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn`t work, you might need a new fuel filter.
The most likely reason a mower is hard to push is that the drive cable needs adjustment. Other possible causes include: Worn drive belt. Damaged pulley.
Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn`t work, you might need a new fuel filter.
The most likely reason a mower is hard to push is that the drive cable needs adjustment. Other possible causes include: Worn drive belt. Damaged pulley.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

How do i add transmission oil – Ariens Lawn Tractor 46"" Riding Lawn Mower 936053"
ANSWER : Should a plug or cap on top of transaxle.

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Mower won’t start
ANSWER : This may sound stupid but don’t mean it to…
Have you tried with the choke all the way open? Do you have an automatic cruise? Is the right (correct) pedal being pushed in? These will affect if it starts or not. Also if your drive belt or one of the other belts not being tight enough will affect if it starts or just turns over. Not too many things can stope it from starting with new/good battery AND if its getting gas. Try cleaning your gas line and obviously making sure there is no obstruction around or near your blade, if it does start with blade engaged that is :))
If it doesn’t start with blade engaged, well make sure it’s in neutral. Mine won’t start in reverse but will in forward or neutral.

Hope it helps.

Anthony

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Toro 149cc Lawn Mower Won't Start – Toro Lawn Mower With Toro Power Tools
ANSWER : Bad carburetor your old fuel jammed up the jet so it won’t get fuel and if it does it will start and shut off So replace the carb or try to clean the jet and run non oxy fuel only

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Lawn mower motor runs good, the drive wheels run good but the blade won’t stay enguaged. Thanks
ANSWER : Check your cable that controls the blade engagement.

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My mower will start but won't stay running – Toro LX466 22HP Lawn Tractor 13RT61RH244
ANSWER : I am going to respond 2 times to this post. The first reply will be generic things to check.
First off check the oil level and make sure it is serviced to full.
If your having a lack of fuel (runing lean) you will need to check fuel flow at the carb fuel mainfold. It should fill a spray paint can lid in less than 10 seconds but teting flow rated of the main fuel line. If you have poor flow here… you need to check the fuel filter and the fuel tank outlet port for obstructions.

Good Fuel flow still shutting off…. remove the carb float bow and clean the debris from the bow’ and the treaded area where the fuel solenoid mounts Additionally you will have to again remove the main fuel line and spray carb cleaner in the float needle area to flush out any debris through the fuel hose connection.

For the second response I need to know which engine is installed on your mower by MODEL number if you can locate it. (there are 3 engines) At least try to find the engine model number. If you can not locate it Brand and HP of the engine (I assume 22 hp) Thanks for choosing FixYa,
Kelly

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Lawn mower cranck but wont start…
ANSWER : Since you already checked for spark and air I would drain all the fuel out of it and check that fuel for water. Over time some lawn mowers end up with contaminated fuel. You can see the water sitting on the bottom of the fuel if you let it stand for a bit in a small plastic bowl.

Be sure to empty and dry out you fuel can as well. Especially if the mower stopped running right after a refuel. Which is a good sign your gas can is contaminated too.

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My dls 3500 mower will not start at all, I charged the battery but the engine wont even turn. All the wiring and fuses seem to be ok
ANSWER : I had the same problem. I replaced the wiring harness for a short fix, corrosion in the terminals that connect to ignition switch. This worked for a while. Then replaced ignition switch this also worked for short time. Now I just open the hood to reach behind the ignition switch and wiggle wires while turning key to start until it starts keep wiggling to get good contact. If it won’t stop after it starts, wiggle wires after you turn the key to off. It will stop.

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I have a Crafstman Riding mower model #917.273643. That ran fine one second, I shut it off for five minutes. When I went to start it back up it wouldn’t start. Cranks fine, checked the wires, fuse, and spark plug. The plug was dirty so I cleaned it. But I am not getting any spark. I bought a new plug still no spark. I also checked the plug on another motor and I had spark so the plug wasn’t bad. Any suggestions on how to troubleshoot this or what may be wrong?
ANSWER : Sounds like your coil went bad

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