Why Simplicity Regent engine runs and tractor drives, but mower will not drive?
- AAmanda MyersSep 12, 2025
If your Simplicity Lawn Mower engine runs and the tractor drives, but the mower won't drive, the PTO may not be engaged. Engage the PTO.
Why Simplicity Regent engine runs and tractor drives, but mower will not drive?
If your Simplicity Lawn Mower engine runs and the tractor drives, but the mower won't drive, the PTO may not be engaged. Engage the PTO.
What to do if Simplicity Regent steers hard or handles poorly?
If your Simplicity Lawn Mower steers hard or handles poorly, the steering linkage may be loose, the tire inflation may be improper (see Check Tire Pressure section), or the front wheel spindle bearings may be dry. Loose steering linkage and dry spindle bearings require attention from an authorized dealer.
What to do if Simplicity Regent brake will not hold?
If the brake on your Simplicity Lawn Mower will not hold, it may be due to an internal brake worn, which requires attention from an authorized dealer.
Why won't my Simplicity Regent Lawn Mower engine turn over?
If your Simplicity Lawn Mower engine won't turn over or start, make sure the brake pedal is fully depressed. Also, ensure the PTO (electric clutch) switch is in the OFF position and cruise control is disengaged by moving the knob to the NEUTRAL/OFF position. Check your fuel level and refill if necessary, allowing a hot engine to cool first. If the engine is flooded, disengage the choke. Other potential issues include a blown fuse, discharged battery, or loose wiring, which may require professional assistance. Faulty safety interlock switches, water in the fuel, or old gas can also prevent starting.
What to do if Simplicity Regent Lawn Mower engine runs, but tractor will not drive?
If the engine of your Simplicity Lawn Mower runs, but the tractor won't drive, ensure the ground speed control pedals are depressed and the transmission release lever is in the DRIVE position, not PUSH. Also, check that the parking brake is disengaged.
What to do if Simplicity Regent engine knocks?
If your Simplicity Lawn Mower engine is knocking, check the oil level and add oil as needed. It could also be due to using the wrong grade of oil; refer to the Engine Manual for the correct type.
Why Simplicity Lawn Mower engine exhaust is black?
If the engine exhaust from your Simplicity Lawn Mower is black, it could be due to a dirty air filter (see the Engine Manual) or a closed choke. Try opening the choke.
Why Simplicity Lawn Mower engine starts hard or runs poorly?
If your Simplicity Lawn Mower engine starts hard or runs poorly, it could be due to a fuel mixture that is too rich. Try cleaning the air filter.
What to do if Simplicity Lawn Mower engine stalls easily with mower engaged?
If your Simplicity Lawn Mower engine stalls easily when the mower is engaged, ensure the engine speed is set to full throttle and that you're not moving too fast. If the air filter is dirty or clogged, see the Engine Manual. Avoid setting the cutting height too low and, if cutting tall grass, use the maximum cutting height for the first pass. Allow the engine to warm up for several minutes before engaging the mower. Starting the mower in a cleared area can also prevent stalling.
What to do if Simplicity Lawn Mower runs but mower won't drive?
If your Simplicity Lawn Mower runs and the tractor drives, but the mower won't drive, engage the PTO.
Outlines essential safety rules for general operation of the tractor and mower.
Provides critical safety guidelines for operating the tractor on slopes.
Provides an overview and illustration of tractor and mower controls.
Explains how to test the tractor's safety interlock systems for proper operation.
Lists general safety measures to follow before and during tractor operation.
Provides a step-by-step guide for starting the tractor engine safely.
Outlines the correct procedure for stopping the tractor and its engine.
Instructions for operating the tractor's drive system.
Steps and tips for operating the mower attachment.
A comprehensive schedule of maintenance tasks and their intervals.
Procedures for checking blade stopping time and safety interlock system functionality.
Procedures for removing, sharpening, balancing, and reinstalling mower blades.
An introduction to troubleshooting common tractor problems and their causes/remedies.
Lists common tractor symptoms, problems, and solutions for diagnosis.
Lists common mower cutting issues, problems, and solutions for diagnosis.
Steps to adjust the brake spring for proper brake function on hydro models.
Steps to adjust the brake cam and spring for proper brake function on gear models.
Details the procedure for adjusting the PTO clutch for proper belt tension.
Specific instructions for adjusting the idler pulley on 44-inch mower decks.
Procedure to verify that mower blades stop within five seconds after disengaging PTO.
Step-by-step guide for replacing the mower drive belt on 38-inch decks.
Step-by-step guide for replacing the mower drive belt on 44-inch decks.
| Engine Brand | Briggs & Stratton |
|---|---|
| Cutting Width | 42 inches |
| Transmission Type | Hydrostatic |
| Fuel Capacity | 3 gallons |
| Deck Type | Stamped Steel |
| Turning Radius | 18 inches |
| Cutting Height | 1.5 - 4 inches |
| Warranty | 3 years |












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