24HP 54″ Yard Tractor ()

Experienced gardeners share their insights in answering this question :
Something is wrong with the blades mechanism – it opposes too much resistance to the motor and the motor can’t deliver enough torque to compensate so it boggs down.

You will need to inspect the entire mechanism and look for rusted and/or seized parts. Also check the belt and its tensioner for proper functioning status. Also check the clutch for loose friction pads .

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

The pulleys in your lawn tractor are driven by the drive belt, and turn the spindles. If a pulley doesn`t spin freely, it can cause the engine to die when the blades are engaged. To check the pulleys for sticking and damage, first remove the drive belt from the engine pulley and lift the lever to engage the blades.
What`s happening? This is a normal function of the seat safety switch. With the blades engaged, weight from the operator allows the seat safety switch to keep the engine running.
Over time, a spark plug will wear out. Eventually, the spark will no longer be powerful enough to fully ignite the air and fuel. You are likely to notice power loss including bogging down when cutting grass because of a worn spark plug. Removing and replacing a spark plug is easy.
If the blades are engaged and you shift to reverse the mower is designed to either shut off the blades or the engine. Some units have ROS, this is an additional position on the key switch that can be activated if the operator feels the need to mow in reverse.
Top Reasons why your blades will not engage on your riding mower or tractor: 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.
Clogged or Dirty Air Filters

It is one of the most common problems that cause lawnmowers to sputter. The mowers take the air from the surrounding through air filters and mix it with fuel inside the engine. So, if the air filter is clogged or dirty, it will affect the flow of air into the carburetor.

If the mowing deck is engaged and the unit is in reverse, the mower will shut down as part of a safety feature.
The spark plugs are worn or damaged

If you find that your lawnmower keeps dying, or keeps stalling while cutting grass, then inspect the spark plugs. Look for signs of damage or wear. Something as simple as a cracked porcelain insulator can mean an electrode has been damaged or burned away.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Engine dies if i engage blades or take my foot off the brake
ANSWER : You likely need to replace the brake switch,the seat switch can also cause the same problem.Most likely problem is the seat switch,i would try that first.The pto or the reverse switch can cause a shut down but not until you try to mow,seat switch is the most suspect.

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When you engage the blade the motor dies. Why
ANSWER : Most likely it is a bad safety switch under the seat. Please vote yes if this is helpful.

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Serviced my riding lawnmower runs great. but when I put in drive it dies out. Also when I engage blades it dies out. No problems last summer. It won,t stay running when I do these two steps
ANSWER : Probably the seat safety switch. If it’s not activated (from your weight on the seat) the engine is killed when you put it in gear, or engage the blades. Lift up the seat and check the switch – wires on tight? switch tightly mounted? You can take the switch out and tape it in the pushed-in position to test things. If that doesn’t let the mower run, the switch itself is probably bad, but it could also be a connector that knocked loose when you serviced the mower. Check wires and connectors. Good luck!

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I started the mower but the blades will not turn. I shut it off and was able to manually turn the blades by hand. I also was able to turn the belt wheel under the engine and have it turn the blades. With it running and me on the seat, they don’t turn. With it running; brake engaged; and I pull the mower switch to engage them, the mower wants to die. Two questions: Is there a swtich on the seat to insure the blades can not turn while no one is on the seat? Is there a key between the belt wheel and the PTO shaft that needs to be replaced? Thank you.
ANSWER : Most all riders have a safety seat switch now and they do malfuction alot. They are under the seat and are ez to replace most of the time. First look for a wire that is grounding due to rubbing a sharp object. That can be fixed with black tape

Good luck!!!

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When I hold the bar down that engages the blade it will not cut?
ANSWER : Is the blade sharp?

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When engaging blades engine dies after mowing over 2in sawn off tree stump
ANSWER : Take deck belt of and check that blades stiil turn by hand most likley bent or broken

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What could cause the engine to die when the blades are engaged?
ANSWER : Bad safety switch on the seat or the reverse switch is stuck

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When I engage the clutch, the engine dies. The baldes turn freely, so it looks like and electrical problem. Is there a safety device that would kill the engine when the clutch is engaged?
ANSWER : All modern riding mowers now days have several safety switches and or relays/micro switches. Some are simple blade switches that make or break contact depending on the position of a lever. There is a contactor under the seat that will kill the engine if you fall off(you have to sit on it for it for the engine to keep running). There is one that kills the engine if you put the mower in reverse with the blades engaged. And there is a contactor that senses wether the mower blades are in fact engaged or not. It may be awkward but you can look at all the mechanisms and find where the different contactors are and move the levers back and forth to see if they aren’t dirty, bent, or a securement screw is loose or missing. It is also possible that one of the wires are broken or have come off of its connection point. Once you inspect them you should be able to determine the next course of action. These are not hard to fix although they can be difficult to get to. If it has a micro-switch at one of these locations you may need to test it with a continuity meter to determine if it is good or not.

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