Toro 74425 User Manual (English)

Questions and Answers:

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David BrownAug 7, 2025
What to do if my Toro 74425 Lawn Mower engine will not start?
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  Denise CobbAug 7, 2025
  If your Toro Lawn Mower engine won't start, starts hard, or fails to keep running, consider the following: * Ensure the fuel tank is full. * Check that the fuel valve is open. * Make sure the choke is on. * Clean or replace the air cleaner element if it's dirty. * Ensure the spark plug wire(s) are securely connected. * Replace any pitted, fouled, or incorrectly gapped spark plug(s) with new ones. * Replace the fuel filter if it's dirty. * Ensure you're using the correct fuel type, and drain and replace if incorrect. * Add oil to the crankcase if the oil level is low.
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Travis NorrisAug 11, 2025
Why does my Toro 74425 Lawn Mower engine lose power?
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  Jessica GarciaAug 11, 2025
  Your Toro Lawn Mower engine may be losing power due to: * Excessive engine load, so reduce ground speed. * A dirty air cleaner, so clean the air cleaner element. * Low oil level in the crankcase, so add oil. * Blocked cooling fins and air passages, so remove the obstruction. * Pitted, fouled, or incorrectly gapped spark plug(s), so install a new, correctly gapped spark plug(s). * A closed vent in the fuel cap, so open the vent. * A dirty fuel filter, so replace the fuel filter. * Incorrect fuel in the fuel tank, so drain the tank and replace the fuel with the proper type.
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randallcookAug 16, 2025
How to fix uneven cutting height on my Toro Lawn Mower?
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  Peter SimsAug 16, 2025
  To fix uneven cutting height on your Toro Lawn Mower: * Sharpen the blade(s) if they are not sharp. * Install a new cutting blade(s) if a cutting blade(s) is/are bent. * Level the mower from side-to-side and front-to-rear. * Adjust the anti-scalp wheel height if an anti-scalp wheel is not set correctly. * Clean the underside of the mower if it's dirty. * Adjust the tire pressure if it is incorrect.
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Kim RodriguezAug 20, 2025
Why is my Toro 74425 Lawn Mower engine overheating?
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  amendozaAug 20, 2025
  Your Toro Lawn Mower engine might be overheating due to several reasons: * The engine load could be excessive, so reduce the ground speed. * The oil level in the crankcase might be low, so add oil. * The cooling fins and air passages under the engine blower housing could be plugged, so remove any obstructions. * The air cleaner might be dirty, so clean or replace the air cleaner element. * There may be dirt, water, or stale fuel in the fuel system.
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Dr. Nicholas FowlerAug 25, 2025
What to do if my Toro 74425 starter does not crank?
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  Robin LongAug 25, 2025
  If the starter on your Toro Lawn Mower doesn't crank, check these items: * Ensure the blade control switch is disengaged. * Confirm the motion control levers are in the brake position. * Make sure you are seated. * Charge the battery if it is dead. * Check the electrical connections for good contact. * Replace the fuse if it is blown.
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James StewartAug 28, 2025
Why does my Toro 74425 have abnormal vibration?
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  Luis CisnerosAug 28, 2025
  Abnormal vibration in your Toro Lawn Mower can be caused by: * Loose engine mounting bolts, so tighten them. * A loose engine pulley, idler pulley, or blade pulley, so tighten the appropriate pulley. * Bent or unbalanced cutting blade(s), so install a new cutting blade(s). * A loose blade mounting bolt, so tighten it.
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bobbyvalenciaSep 2, 2025
What to do if the blades do not rotate on my Toro 74425 Lawn Mower?
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  Diana CookSep 2, 2025
  If the blades on your Toro Lawn Mower do not rotate: * Install a new drive belt if it is worn, loose, or broken. * Install the drive belt and check the adjusting shafts and belt guides for the correct position if the drive belt is off of the pulley. * Install a new mower belt if the mower belt is worn, loose, or broken.

Toro 74425 Specifications

General

Model	74425
Engine	Briggs & Stratton
Engine Type	4-Cycle
Engine Displacement	163 cc
Cutting Width	22 inches
Drive Type	Self-Propelled
Start Type	Recoil
Deck Material	Steel
Height Adjustment	Single Lever
Cutting Height	1 to 4 inches
Type	Walk-Behind Lawn Mower
Drive System	Rear-Wheel Drive
Warranty	2-Year Full Coverage