Simplicity Cobalt Series

Questions and Answers

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Matthew MartinSep 9, 2025
What causes uneven cutting with my Simplicity Cobalt?
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  Lauren HintonSep 9, 2025
  Uneven cutting with your Simplicity Lawn Mower can result from several issues. Ensure the deck is leveled correctly. Check if the blades are dull or worn and sharpen or replace them. Damaged blades should also be replaced. A deck clogged with grass clippings can cause unevenness, so clean it out. Inspect the deck shell for damage and repair or replace it if necessary. Also, check if the mower spindle is bent or loose and repair or replace it. Make sure the blades are installed correctly and that the tires are properly inflated.
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gregorymiddletonSep 7, 2025
Why does my Simplicity Cobalt steer or handle poorly?
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  mark99Sep 8, 2025
  If your Simplicity Lawn Mower steers or handles poorly, check for loose connections in the steering linkage and tighten them. Also, ensure proper tire inflation.
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Paige HardingAug 22, 2025
Why won't my Simplicity Cobalt engine turn over or start?
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  Bryan JohnstonAug 22, 2025
  If your Simplicity Lawn Mower engine won't turn over or start, there are several potential causes. First, ensure the parking brake is engaged and the PTO switch is in the OFF position. Check if you are out of fuel, and if the engine is hot, let it cool before refilling. If the engine is flooded, move the choke control to the CLOSED position. Other possible causes include a blown fuse (replace it), dirty battery terminals (clean them), a discharged or dead battery (recharge or replace it), loose or broken wiring (check and repair/tighten), a faulty solenoid or starter motor, a faulty safety interlock switch, faulty or incorrectly gapped spark plugs, or water or old fuel in the fuel tank (drain and replace with fresh fuel).
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roysmithSep 5, 2025
What to do if the mower drive belt slips or fails to drive on my Simplicity Cobalt Lawn Mower?
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  Catherine DavisSep 5, 2025
  If the mower drive belt slips or fails to drive on your Simplicity Lawn Mower, the idler pulley spring may be broken or not properly attached; repair or replace it as needed. The mower drive belt could also be broken; replace the drive belt.
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shawnmorrisonSep 3, 2025
What causes scalping when using my Simplicity Lawn Mower?
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  nicolelaneSep 4, 2025
  Scalping with your Simplicity Lawn Mower can occur if the lawn is uneven or bumpy; consider rolling or leveling the lawn. If the mower deck cutting height is set too low, raise it. Excessive ground speed can also cause scalping, so slow down. Ensure the deck is leveled correctly and that the tire pressure is correct and even.
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Linda SweeneySep 2, 2025
Why is there excessive mower vibration in my Simplicity Lawn Mower?
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  Kyle RussellSep 2, 2025
  Excessive vibration in your Simplicity Lawn Mower can be caused by several factors. Check if the blade mounting bolts are loose and tighten them to 70 ft.lbs (94 Nm). Bent mower blades, spindles, or pulleys can also cause vibration, so inspect and replace them as necessary. Additionally, unbalanced mower blades can contribute to this issue; remove, sharpen, and balance the blades. Finally, ensure the belt is installed correctly.
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chelsea57Sep 1, 2025
What causes the rider drive belt to slip on my Simplicity Cobalt Lawn Mower?
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  Brian QuinnSep 1, 2025
  If the drive belt on your Simplicity Lawn Mower is slipping, it could be due to greasy or oily pulleys or belt; clean them as needed. Another cause is loose tension; adjust the spring tension. The belt might also be stretched or worn, requiring replacement.
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Joseph King MDAug 31, 2025
Why does my Simplicity Cobalt have excessive oil consumption?
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  Ryan AndersonAug 31, 2025
  Excessive oil consumption in your Simplicity Lawn Mower can stem from a few issues. The engine might be running too hot, so clean the engine fins, blower screen, and air cleaner. Using the wrong weight oil can also cause this issue. Ensure you are using the correct oil. Finally, too much oil in the crankcase can lead to excessive consumption, so drain any excess oil.
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dalton44Aug 30, 2025
What to do if Simplicity Cobalt engine stalls easily with mower engaged?
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  David AustinAug 30, 2025
  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 are not moving too fast. If the cutting height is too low, especially in tall grass, raise it for the first pass. Also, check if the discharge chute is jamming with cut grass; if so, cut with the discharge pointing towards the previously cut area.
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Kimberly CarterAug 28, 2025
Why is my Simplicity Cobalt Lawn Mower engine knocking?
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  Beth KingAug 29, 2025
  If your Simplicity Lawn Mower engine is knocking, check the oil level and add oil if needed. It could also be caused by using the wrong grade of oil.