Jonsered L4721 User Manual (English)

Questions and Answers:

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Timothy SimpsonJul 25, 2025
Why my Jonsered L4721 Lawn Mower does not start?
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  Lauren SilvaJul 25, 2025
  If your Jonsered Lawn Mower doesn't start, it could be due to several reasons. First, ensure you're following the correct starting procedure. Other potential causes include a clogged air filter (clean or replace it), an empty fuel tank (refill it), a defective spark plug (replace it), a disconnected spark plug cable (check the connection), a loose or broken blade adapter (tighten or replace it), a defective operator presence control bar (contact a service workshop), the fuel valve lever being in the OFF position (turn it to ON), low battery voltage (charge the battery), incorrect battery connection (connect it correctly), or a blown fuse (replace the fuse).
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Alexis ChambersJul 29, 2025
How to fix uneven mowing with Jonsered L4721?
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  Wendy ShafferJul 30, 2025
  If your Jonsered Lawn Mower is mowing unevenly, it could be due to a worn, bent, or loose blade. Replace the blade if it's damaged. Also, check that all wheel heights are set evenly. Finally, ensure there's no buildup of grass, leaves, or trash under the mower, and clean it if necessary.
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Jason BarryAug 2, 2025
Why Jonsered L4721 Lawn Mower losing power?
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  Donald EdwardsAug 3, 2025
  If your Jonsered Lawn Mower is experiencing less power, consider these factors: The height of cut might be too low, so raise it. A clogged air filter could be the problem; clean or replace it. Buildup of grass, leaves, and trash under the mower can also reduce power, so clean the underside of the mower housing. Also, check the engine’s oil level, as too much oil can cause issues. Finally, ensure you're not walking too fast while mowing; cut at a slower speed.
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Jaime SanchezAug 7, 2025
Why is the starter rope hard to pull on my Jonsered L4721?
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  Jessica OrtizAug 7, 2025
  If your Jonsered Lawn Mower's starter rope is hard to pull, it could be due to a few reasons. Make sure the engine flywheel brake isn't engaged by depressing the operator presence control bar before pulling the rope. A bent engine crankshaft could also be the culprit, requiring professional service. Additionally, a broken blade adapter or an incorrect starting procedure might be the cause. For the latter, consult the starting instructions.
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Holly SmithAug 11, 2025
What to do if Jonsered L4721 has excessive vibrations?
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  Steven ThompsonAug 12, 2025
  If your Jonsered Lawn Mower is vibrating excessively, the issue might stem from a worn, bent, or loose blade. Replace the blade if it shows signs of damage. Alternatively, a bent engine crankshaft could be the cause, which requires contacting an authorized service workshop.
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Mr. Richard Gray MDAug 16, 2025
Why is the grass catcher not filling on my Jonsered L4721 Lawn Mower?
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  Theresa TateAug 16, 2025
  If the grass catcher on your Jonsered Lawn Mower isn't filling properly, first check if the cutting height is too low and raise it if needed. A worn blade can also cause this issue, so consider replacing it. Lastly, ensure the catcher is venting air correctly by inspecting and cleaning it.
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ocoxAug 20, 2025
Why is my Jonsered L4721 difficult to push forward?
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  Shaun DavidsonAug 20, 2025
  If it's difficult to push your Jonsered Lawn Mower forward, it could be due to several reasons. If you're cutting extremely tall grass, raise the height of cut. A full grass catcher can also make it harder to push, so empty it. Adjusting the handle height, if your mower has that feature, might also help. Belt wear can also cause difficulty, so see instructions under the heading Replacing the drive belt.