How can I boost the torque of my Yamaha Drive G29?

I’m getting annoyed with my sluggish Yamaha Drive G29. It’s just not delivering the torque I need, especially on hills and rough terrains. I’ve heard about some modifications but I’m not sure where to start. Can anyone guide me on how to effectively increase the torque without causing damage or spending a fortune?


After a lot of trial and error, I found that upgrading the G29 controller made a huge difference. It’s an investment but it pays off in terms of performance. Just be cautious about your motor’s capacity when you make this upgrade.

Solutions that Worked for Users

SolutionUsers Who Found SuccessApprox. Cost (USD)Approx. Time Needed (Minutes)
Upgrade to Alltraxx 400 Amp Controller2$400 – $600120 – 180
Install Performance Kit from Plowmanscarts.com1$600180 – 240
Check and Upgrade Batteries1$100 – $300 (per battery)60 – 90


  • The cart struggles on inclines, lacking the necessary power.
  • Acceptable performance on flat ground, but noticeable power drop on slopes.

Possible Causes

  • Insufficient power from batteries.
  • Inadequate controller for high torque demands.
  • Motor limitations in handling increased power.

Solutions with Extra Steps and Tips

1. Upgrade to Alltraxx 400 Amp Controller

  • What I Did: Replaced the stock controller with an Alltraxx 400 amp controller.
  • Outcome: Remarkable improvement in torque, especially on inclines.
  • Personal Experience: The cart felt rejuvenated, though I had to monitor the motor’s condition.
  • Detailed Steps:
    1. Research and purchase a compatible Alltraxx 400 amp controller.
    2. Safely disconnect the cart’s power source and remove the seat to access the controller.
    3. Carefully remove the existing controller, noting the wiring connections.
    4. Install the new controller, meticulously following the wiring diagram.
    5. Secure the controller and reconnect the power.
    6. Test the cart on different terrains to evaluate the torque improvement.
  • Expert Tip: Use dielectric grease on connections to prevent corrosion. Regularly check the motor for overheating signs after this upgrade.

2. Install Performance Kit from

  • What I Did: Installed a comprehensive performance kit.
  • Outcome: Significant torque boost, making hill climbs easier.
  • Personal Experience: The kit was a game-changer for uphill performance.
  • Detailed Steps:
    1. Order the specific performance kit for the Yamaha G29 from
    2. Upon arrival, carefully unpack and verify all components.
    3. Follow the detailed installation guide, starting with the controller.
    4. Replace other components as instructed, such as solenoids or wires.
    5. After installation, conduct a thorough test drive.
  • Expert Tip: Ensure your toolkit is complete with necessary items like wrenches and screwdrivers. Take photos before disassembly for reference.

3. Check and Upgrade Batteries

  • What I Did: Evaluated and upgraded the batteries.
  • Outcome: Slight improvement in power delivery and torque.
  • Personal Experience: Essential step but not a complete solution for torque issues.
  • Detailed Steps:
    1. Use a multimeter to test each battery’s voltage and load capacity.
    2. Inspect for any signs of corrosion or damage.
    3. Replace batteries that show poor performance or are aged.
    4. Ensure all connections are clean and secure after replacement.
    5. Perform a test drive to assess the improvement.
  • Expert Tip: Regularly clean battery terminals and check water levels if using lead-acid batteries. Consider a battery desulfator for older batteries to improve their lifespan.

Golf Cart Models Where This Worked

  • 2016 Yamaha Drive G29
  • Applicable to similar models in the Yamaha Drive series


Ernie loves documenting interesting facts about golf.

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