Toro 74251 User Manual (English)

Questions and Answers:

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harriscaitlynAug 20, 2025
Why is the starter not cranking on my Toro 74251?
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  Shane ChristensenAug 20, 2025
  If the starter on your Toro Lawn Mower isn't cranking, several factors could be at play. Ensure the blade control (PTO) is disengaged and the parking brake is engaged. Confirm that the operator is seated properly. Check the battery; if it's dead, charge it. Inspect all electrical connections for corrosion or looseness, ensuring good contact. Also, verify if the fuse is blown and replace it if necessary. If these steps don't resolve the issue, the relay or switch might be defective, and you should contact an Authorized Service Dealer.
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Don SmithAug 22, 2025
How to troubleshoot a Toro 74251 Lawn Mower engine that won't start?
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  fieldsjenniferAug 22, 2025
  If your Toro Lawn Mower engine won't start, starts with difficulty, or doesn't stay running, begin by checking if the fuel tank is empty and fill it with fuel if needed. Inspect the air cleaner for dirt and clean or replace the air cleaner element. Ensure the spark plug wire is securely connected to the spark plug. Replace any spark plugs that are pitted, fouled, or have an incorrect gap with new, correctly gapped spark plugs. For issues related to dirt in the fuel filter, or dirt, water, or stale fuel in the fuel system, contact an Authorized Service Dealer.
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Jillian MaloneAug 25, 2025
Why my Toro Riding mower engine will not start, starts hard, or stalls?
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  melissa39Aug 25, 2025
  If your Toro Riding mower engine won't start, starts hard, or stalls, first ensure the fuel tank is full and the choke is on. Then, check if the air filter is dirty and clean or replace it. Also, make sure the spark plug wires are securely connected, and the spark plugs are in good condition with the correct gap. Finally, verify that the fuel filter is clean. If the issue persists, there might be dirt, water, or stale fuel in the fuel system.
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Dr. Brandon Dunn Jr.Aug 26, 2025
Why is my Toro 74251 Lawn Mower engine losing power?
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  Deborah CollinsAug 27, 2025
  If your Toro Lawn Mower engine is losing power, start by reducing the ground speed to lessen the engine load. Check and clean the air cleaner element. Ensure the oil level in the crankcase is adequate; add oil if it's low. Clear any obstructions from the cooling fins and air passages above the engine. Replace any spark plugs that are pitted, fouled, or have an incorrect gap with new, correctly gapped spark plugs. For issues like a cracked muffler, broken Oxygen sensor, dirt in the fuel filter, or contaminated fuel, it's best to contact an Authorized Service Dealer.
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Adam NelsonAug 27, 2025
What to check if the blades do not rotate on my Toro 74251?
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  Rhonda ParsonsAug 27, 2025
  If the blades of your Toro Lawn Mower are not rotating, check the drive belt tension. Ensure the drive belt is properly installed on the pulley, and inspect the adjusting shafts and belt guides for correct positioning. Replace the deck belt if it is worn, loose, or broken. Make sure the deck belt is correctly positioned on the pulley, and check the idler pulley, idler arm, and spring for proper function. Replace the idler spring if it is broken or missing.
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Christina SimpsonAug 29, 2025
How to fix an uneven cutting height on my Toro 74251 Lawn Mower?
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  Kimberly VillarrealAug 29, 2025
  If your Toro Lawn Mower is producing an uneven cutting height, start by sharpening the blades. Replace the cutting blades if they are bent. Ensure the mower is level from side-to-side and front-to-rear. Clean the underside of the mower deck. Adjust the tire pressure to the correct level. If the blade spindle is bent, contact an Authorized Service Dealer.
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Alicia TaylorAug 31, 2025
Why does my Toro Riding mower have an uneven cutting height?
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  John RyanAug 31, 2025
  If your Toro Riding mower has an uneven cutting height, start by sharpening the blades. If the cutting blades are bent, install new ones. Ensure the mower is level from side-to-side and front-to-rear. Adjust the gage wheel height if the anti-scalp roller isn't set correctly. Clean the underside of the mower and adjust the tire pressure. If the blade spindle is bent, you will need professional assistance.
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Debra SanchezSep 2, 2025
What to do if my Toro Lawn Mower engine overheats?
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  watkinsdeborahSep 2, 2025
  If your Toro Lawn Mower engine is overheating, there are several things you can check. First, see if more coolant is needed and add if necessary. Clean the air intake screens and radiator screen with every use to ensure they are free of debris. Also, clean the radiator fins. Make sure the engine oil level is at the correct mark by either filling or draining as needed. If the problem persists, the fuel mixture may be lean, and you should contact your Authorized Service Dealer. Ensure that the engine load is not excessive by reducing the ground speed.
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Christine CaseSep 4, 2025
Why is my Toro Lawn Mower vibrating abnormally?
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  Kelly HillSep 4, 2025
  If your Toro Lawn Mower is experiencing abnormal vibrations, inspect the cutting blades for bends or imbalance and replace them if necessary. Tighten the blade mounting bolt. Ensure the engine mounting bolts are secure. Tighten any loose engine pulley, idler pulley, or blade pulley. For a damaged engine pulley or a bent blade spindle, contact an Authorized Service Dealer.
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Melissa McintyreSep 6, 2025
What to do if my Toro Lawn Mower won't drive?
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  Sarah RogersSep 6, 2025
  If your Toro Lawn Mower does not drive, ensure the tension spring is connected. Tighten the bypass valve securely. For issues such as a worn, loose, or broken traction belt, or a traction belt that has come off a pulley, it's best to contact an Authorized Service Dealer. Check the hydraulic fluid level; if it's low, add hydraulic fluid to the reservoir, or if it's too hot, allow it to cool down.