Why is my Yamaha Golf Cart making a squealing noise?

My Yamaha G29 golf cart has started making this unbearable squealing noise whenever I hit the pedal. Why is my golf cart making this noise?


I totally feel your pain. I had a similar nightmare with my Yamaha cart. Turns out, a simple adjustment to the starter belts did the trick for me. Let’s dive into some detailed solutions that might just save your day.

Solutions that worked for users

SolutionUsers Who Found SuccessApprox. Cost (USD)Approx. Time Needed (Minutes)
Adjusting Starter BeltsMultiple$20 – $4030 – 60
Tightening Castle Nuts on Rear HubsMultiple$0 – $1015 – 30
Greasing Axle BearingsMultiple$5 – $1520 – 40
Replacing Drive Belt with OEM or Kevlar BeltMultiple$40 – $8045 – 90


  • High-pitched squealing noise during acceleration
  • Noise intensifies with continuous use
  • Occasional squeal when coasting downhill

Possible Causes

  • Loose or worn starter belts
  • Loose components in clutch or rear hubs
  • Degraded drive belt
  • Dry or dirty axle bearings

Solutions that Worked

  1. Adjusting Starter Belts
    • What I Did: Checked and adjusted the tension of the starter belts for proper alignment and tension.
    • Outcome: Reduced belt slippage and eliminated the squealing noise.
    • Personal Experience: After fine-tuning the belts, the squealing noise during startup and acceleration was significantly reduced.
    • Estimated Cost: $20 – $40
    • Time Needed: 30 – 60 minutes
    • Detailed Steps:
      1. Locate the starter belts near the engine.
      2. Use a wrench to loosen the mounting bolts slightly.
      3. Adjust the belts to achieve the right tension – not too tight, not too loose.
      4. Retighten the mounting bolts securely.
      5. Run the cart to test if the squealing has stopped.
    • Expert Tip: Regularly inspect your belts for wear and tear. A belt that’s in good condition but improperly tensioned can cause as many problems as an old, worn-out belt.
  2. Tightening Castle Nuts on Rear Hubs
    • What I Did: Ensured the castle nuts on the rear hubs were securely tightened.
    • Outcome: Stopped the squealing noise when turning.
    • Personal Experience: This simple fix eliminated the noise, especially noticeable when making sharp turns.
    • Estimated Cost: $0 – $10
    • Time Needed: 15 – 30 minutes
    • Detailed Steps:
      1. Jack up the rear of the cart to access the hubs.
      2. Locate the castle nuts on each rear hub.
      3. Use a socket wrench to tighten the nuts firmly.
      4. Replace the cotter pins if necessary.
      5. Lower the cart and test drive to check for noise.
    • Expert Tip: Loose nuts can lead to more than just noise; they can cause significant wear and tear on your cart’s components. Regular checks are key.
  3. Greasing Axle Bearings
    • What I Did: Applied high-quality grease to the axle bearings.
    • Outcome: Resolved the screeching noise when coasting downhill.
    • Personal Experience: This maintenance step made a significant difference in reducing noise.
    • Estimated Cost: $5 – $15
    • Time Needed: 20 – 40 minutes
    • Detailed Steps:
      1. Safely lift the rear of the cart and remove the wheels.
      2. Locate the axle bearings and clean any old grease or debris.
      3. Apply a liberal amount of high-quality grease.
      4. Reassemble the wheels and lower the cart.
      5. Test the cart for any remaining noise.
    • Expert Tip: Using a high-quality grease can extend the life of your bearings and reduce the need for frequent maintenance.
  4. Replacing Drive Belt with OEM or Kevlar Belt
    • What I Did: Swapped out the old drive belt for a new, high-quality OEM or Kevlar belt.
    • Outcome: Eliminated the squealing noise from the clutch area.
    • Personal Experience: This upgrade provided a more durable solution and smoother operation.
    • Estimated Cost: $40 – $80
    • Time Needed: 45 – 90 minutes
    • Detailed Steps:
      1. Locate and remove the old drive belt from the pulleys.
      2. Compare the new belt with the old one to ensure correct sizing.
      3. Install the new belt, ensuring it sits properly on the pulleys.
      4. Adjust the belt tension as needed.
      5. Test drive the cart to ensure the noise is gone.
    • Expert Tip: Choosing a high-quality belt like OEM or Kevlar can greatly reduce the frequency of replacements and provide a quieter ride.

Extra tips

  • Check for Misalignment: Sometimes, the issue isn’t just with the belt or nuts being loose, but with misalignment in the pulley system. Ensure everything is aligned correctly.
  • Inspect for Cracks and Damage: While you’re checking for loose parts, keep an eye out for any cracks or damage, especially in the belt and clutch area.
  • Listen for Variations in Noise: Pay attention to when the noise occurs and its characteristics. This can help pinpoint the exact issue more effectively.

Golf cart models where this worked

  • Yamaha G9A
  • Yamaha G29 Electric
  • Yamaha G29 Gas (specifically the 2007 model)


Ernie loves documenting interesting facts about golf.

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