Toro 74740 User Manual

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FormNo.3413-560RevA

TimeCutter

®

MX4250,MX5050,

MX6050,orSS5425Riding

Mower

ModelNo.74741—SerialNo.400000000andUp

ModelNo.74760—SerialNo.400000000andUp

ModelNo.74771—SerialNo.400000000andUp

ModelNo.74777—SerialNo.400000000andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3413-560*A

Table of Contents

Questions and Answers:

D
Donald PerryAug 21, 2025
Why my Toro 74740 engine does not start?
- A
  Adam CurryAug 21, 2025
  If your Toro Lawn Mower engine isn't starting, starts with difficulty, or won't stay running, possible causes include an empty fuel tank (fill it), a dirty air cleaner (clean or replace it), a loose or disconnected spark plug wire (install the wire on the spark plug), a pitted, fouled, or incorrectly gapped spark plug (install a new, correctly gapped spark plug), low oil level in the crankcase (add oil). If there is dirt in the fuel filter, replace it. For other fuel system issues, seek assistance from an Authorized Service Dealer.
S
Shelley RussellAug 22, 2025
Why does my Toro Lawn Mower engine not start?
- R
  Roger RobinsonAug 22, 2025
  Your Toro Lawn Mower might not be starting due to several reasons. Check if the fuel tank is empty and fill it if needed. A dirty air cleaner can also cause this issue, so clean or replace it. Ensure the spark plug wire(s) is securely connected to the spark plug. Inspect the spark plug(s) for damage or incorrect gap and replace if necessary. Also, a clogged fuel filter can prevent the engine from starting, so replace it if it's dirty. If there is incorrect fuel in the fuel tank, drain the tank and replace the fuel with the proper type. Finally, ensure that the oil level in the crankcase is adequate, adding oil if it's low.
T
timothywhiteAug 25, 2025
Why does my Toro Lawn Mower engine not start, start hard, or fail to keep running?
- K
  karlaarcherAug 25, 2025
  Several factors can cause your Toro Lawn Mower engine to fail to start, start with difficulty, or not stay running. It could be due to an empty fuel tank, so fill it up. The air cleaner might be dirty, in which case you should clean or replace it. Check if the spark plug wire is loose or disconnected and install it correctly. A pitted, fouled spark plug with an incorrect gap should be replaced with a new one, correctly gapped. Also, the fuel filter could be dirty, so replace it. The oil level in the crankcase may be low, so add oil.
T
tjonesAug 26, 2025
Why is my Toro 74740 Lawn Mower cutting height uneven?
- W
  William MillerAug 26, 2025
  Uneven cutting height on your Toro Lawn Mower can stem from several issues. Start by sharpening the blade(s). If a cutting blade is bent, replace it. Ensure the mower is level from side to side and front to rear. Check the anti-scalp wheel setting and adjust its height if necessary. Clean the underside of the mower if it's dirty. Adjust the tire pressure to the correct level.
E
Eric ThompsonAug 27, 2025
Why does my Toro 74740 engine lose power?
- H
  holmestylerAug 27, 2025
  If your Toro Lawn Mower engine is losing power, it could be due to several reasons: excessive engine load (reduce the ground speed), a dirty air cleaner (clean it), low oil level in the crankcase (add oil), plugged cooling fins and air passages (remove the obstruction), or a faulty spark plug (install a new one). If the fuel-tank vent is blocked, there is dirt in the fuel filter, there is dirt, water, or stale fuel in the fuel system, or there is incorrect fuel in the fuel tank you should contact an Authorized Service Dealer.
T
Terry WallaceAug 29, 2025
How to fix uneven cutting height on Toro 74740?
- K
  Karen CoxAug 29, 2025
  Uneven cutting height with your Toro Lawn Mower can result from dull blades (sharpen them), bent cutting blades (install new ones), an unlevel mower (level it from side-to-side and front-to-rear), an incorrectly set anti-scalp wheel (adjust its height), a dirty mower underside (clean it), or incorrect tire pressure (adjust it). If a blade spindle is bent you should contact an Authorized Service Dealer.
P
Peter GordonAug 31, 2025
Why Toro 74740 blades do not rotate?
- S
  Sharon BaileyAug 31, 2025
  If the blades on your Toro Lawn Mower aren't rotating, a worn, loose, or broken drive belt could be the cause (install a new one). Also, check if the drive belt is off the pulley (install the drive belt and check the adjusting shafts and belt guides for the correct position), or if the mower belt is worn, loose, or broken (install a new mower belt). If the power-takeoff (PTO) switch or PTO clutch is faulty you should contact an Authorized Service Dealer.
T
Tanya CollinsSep 1, 2025
What to do if my Toro 74740 engine overheats?
- M
  Micheal ScottSep 2, 2025
  If your Toro Lawn Mower engine is overheating, there are several potential causes. First, the engine load might be excessive, so reduce the ground speed. Second, check the oil level in the crankcase and add oil if it's low. Third, inspect the cooling fins and air passages under the engine blower housing for any obstructions and remove them. Lastly, a dirty air cleaner can contribute to overheating, so clean or replace the air-cleaner element.
A
Alison HughesSep 3, 2025
Why is my Toro Lawn Mower engine losing power?
- D
  Dr. Alexa Johnson DDSSep 3, 2025
  If your Toro Lawn Mower engine is losing power, consider these potential causes: excessive engine load, which can be resolved by reducing ground speed. A dirty air cleaner can restrict airflow, so clean it. Low oil level in the crankcase can also cause power loss, so add oil. Check for obstructions in the cooling fins and air passages and remove them. Inspect the spark plug(s) for damage or incorrect gap and replace if necessary. If there is incorrect fuel in the fuel tank, drain the tank and replace the fuel with the proper type. Finally, if the fuel filter is dirty, replace it.
R
Russell GregorySep 4, 2025
What to do if my Toro 74740 cutting height is uneven?
- J
  Jennifer ReyesSep 5, 2025
  If your Toro Lawn Mower is cutting unevenly, several factors could be responsible. Start by checking if the blade(s) is sharp; if not, sharpen them. Also, inspect the cutting blade(s) for bending and replace if necessary. Ensure the mower is level from side to side and front to rear. Verify that the anti-scalp wheel is set correctly and adjust its height if needed. Clean the underside of the mower deck, as accumulated debris can affect cutting performance. Check and adjust the tire pressure to the correct levels.

Toro 74740 Specifications

General

Cutting Width	22 in
Drive Type	Self-Propelled
Power Source	Gasoline
Engine Displacement	159 cc
Product Type	Walk-Behind Mower

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