Pro-level Guide On Electric Yamaha Golf Cart Troubleshooting

Has your electric Yamaha golf cart suddenly lost power or broken down without warning? A few potential problems are causing this inconvenience. The failure of certain electric parts can lead to multiple functional issues for your electric Yamaha golf cart.

The main culprits are typically battery or motor dysfunction. Problems with speed control, faulty solenoids, or direction switches can also cause trouble for your electric Yamaha golf cart. However, troubleshooting these issues is simple if you know what to do. This article will provide easy solutions for troubleshooting your electric Yamaha golf cart.

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What are some of the usual challenges owners of electric Yamaha golf carts face?

If you have been using the golf cart for an extended period, you may observe it decelerating or shutting down suddenly. You can identify and resolve these issues effortlessly by referring to this guide and implementing the necessary repairs. Presented below are a few frequently encountered complications with electric Yamaha golf carts:

  1. Insufficient Voltage in the Battery
  2. Damaged Motor 
  3. Absence Of Energy From The Solenoids
  4. Absence of Speed Regulation or Malfunctioning Directional Switch
Electric Yamaha Golf Cart Troubleshooting

An Easy Electric Yamaha Golf Cart Troubleshooting Guide

Knowing the potential issues with an electric Yamaha golf cart, it is important to familiarize yourself with the various aspects of these problems. This includes understanding each issue’s signs, origins, and remedies to facilitate a simple resolution for your golf cart.

Issue 1: Insufficient Voltage in the Battery

The electric golf cart relies on its battery as the primary power source, but it gradually loses voltage over time. When an electric golf cart fails to start, the most likely culprit is the battery, making it imperative to investigate this component first. The inability to create can be attributed to a decrease in voltage and the presence of corroded battery terminals.

Diagnosing Insufficient Voltage in the Battery of an Electric Yamaha Golf Cart

Without a doubt, the battery should be your top priority when troubleshooting your electric golf cart. Over time, batteries can gradually lose their voltage and effectiveness. However, if the battery is still within its lifespan, the problem may stem from another source. Several factors can contribute to battery problems in an electric golf car, including:

  • A drained battery
  • Water or the electrolytes contained within the battery are insufficient.
  • The battery had been left uncharged for an extended period.
  • Battery terminals that are corroded or dirty

What can be done to address the issue of insufficient voltage in the battery of electric Yamaha golf carts?

If your battery is completely depleted, it will be necessary to acquire a replacement. Typically, batteries have a 3 to 5 years lifespan, making it improbable that immediate relief is required. There are alternative solutions available for rectifying this issue.

  • Charge your battery completely until it starts to take charge.
  • Even the bare minimum voltage required to start your device may be absent due to a battery discharge. In that case, charge the battery with a 12-volt charger.
  • Use a solution of baking soda and water to remove the corrosion from the battery terminals and cables.
  • Until the conductive plates are submerged, submerge the batteries in water or electrolytes. Refrain from cramming them too full.

What is the price for repairing a lack of voltage in the battery of an Electric Yamaha Golf Cart?

The cost of resolving this issue is contingent upon the necessary course of action. Performing tasks such as charging the battery, replenishing water levels, or cleaning the terminals incur no expenses. However, acquiring a replacement battery will result in an expenditure ranging from $800 to $1,500. A set of fresh battery cables can also be obtained for approximately $20.

Issue 2: Damaged Motor

The electric golf cart’s motor may encounter occasional issues like other motors. Once you have verified that the battery is in good condition, it’s time to inspect the motor. Look for any signs of damage or marks on its exterior. In many instances, a simple reset may be needed for the motor to function properly again. Please take out the motor and test it with a fully charged battery. If there is no response from the motor, it has burnt out.

Diagnosing and Repairing a Faulty Motor on a Yamaha Electric Golf Cart

Causing a motor to burn out requires specific actions to be taken. It is more of a complex task to burn out a motor completely. There are only a handful of factors that can lead to key switch issues on a gas-powered golf cart, including:

  • Inadequate traction
  • Disproportionate resistance to weight and grade
  • The electric golf cart could be operated too steeply.
  • Perhaps the motor is overloaded.

Repairing a Faulty Motor on an Electric Yamaha Golf Cart

You can handle the task independently if the motor requires only minimal repairs. Conversely, if the motor has suffered irreparable damage, it is advisable to seek professional assistance in replacing it.

  • Remove the cart’s outer body with a screwdriver.
  •  Locate and expose the motor inside.
  • A red button will be located near the main power supply.
  • To reset the motor, press the red button. It will act as a motor circuit breaker and will correct minor errors.
  • Put the electric golf cart back together.
  • Fill up the battery.
  • Restart it to see if the problem has been resolved.
  • Repair the bearings and field coils if the electric golf cart does not start.
  • If all of the above methods fail, you must replace the motor.

How expensive is fixing the motor on a damaged electric Yamaha golf cart?

The price range for a new motor investment can vary greatly, ranging from $300 to $1,000. Your chosen motor’s specific type and power will determine the final cost. On the other hand, minor repairs like field coils and bearings are relatively inexpensive, costing only $23 to $30.

Issue 3: Absence Of Energy From The Solenoids

The electric golf cart’s solenoid is a cylindrical coil of wire responsible for delivering electrical current to the motor. The distinct clicking noise emitted by the coil can be heard upon starting the cart. However, pressing the accelerator will not produce this clicking sound if the solenoid is defective. Consequently, without this click, the solenoid fails to supply energy to initiate the electric golf cart’s motor.

Troubleshooting Absence Of Energy From The Solenoids On The Electric Yamaha Golf Cart

The activation circuit wires and corrosion can cause a faulty solenoid. To find the solenoid in the electric Yamaha golf cart, you should inspect for the following issues:

  • A short in the activation circuit.
  • The activation switches are not working properly.
  • Contacts that have become overheated
  • The battery coil is too cold or worn out
  • Solenoid that has corroded

What are the steps to resolve the lack of energy in the solenoids on an electric Yamaha golf cart?

If attempting to repair small coils and wires proves unsuccessful, the solenoid must be replaced. Replacing a solenoid can be quite intricate. Therefore, it is advisable to entrust this task to a skilled individual. The essential procedures for replacing the solenoid are as follows:

  • In the electric Yamaha golf cart, locate the solenoid and wire terminals. You can use the model’s included diagram for this.
  • Locate the solenoid’s connected elements with care.
  • To remove or disassemble the elements, use the appropriate screwdrivers and wrenches.
  • Remove the solenoid’s connected wires and set them aside.
  • Remove the bad solenoid carefully, not damaging any wires or connections.
  • Place your new solenoid in a specific location and reconnect the wires.  

What is the price for repairing the lack of energy in the solenoids on an electric Yamaha golf cart?

A wide variety of solenoids is available for different models and vehicles in the market. An individual solenoid ranges from $15 to $100, while a pack of solenoids can be priced between $50 and $300.

  • Mechanic’s cost: $120-$400
  • Parts/replacement cost: $15-$300

Issue 4: Absence of Speed Regulation or Malfunctioning Directional Switch

Over time, the electric Yamaha golf cart experiences difficulty maintaining speed due to the wear and tear of the switch. This issue also affects the direction switch, whereby frequent shifting between forward and reverse causes problems. Ultimately, these issues lead to losing control over the golf cart’s direction and speed.

Resolving Issues with Speed Controls or Direction Switches on Electric Yamaha Golf Cart

A faulty potentiometer is the primary reason for the absence of speed controls in the electric golf cart. The potentiometer plays a crucial role in ensuring the smooth operation of the cart. Therefore, it is essential to inspect the potentiometer to identify the root cause of this problem. Be vigilant about various factors that contribute to this issue.

  • Parts of the potentiometer may be broken.
  • Inside the potentiometer, there could be disconnected wires.
  • The electrical signal from the potentiometer may not correspond to the range in the controller.
  • The potentiometer’s control lever could slip and cause the electrical signals to be misplaced.
  • Because of repeated use, the direction switch can wear out over time.

What are the steps to repair the speed controls or direction switches on an Electric Yamaha Golf Cart?

It is extremely improbable that you can repair a faulty potentiometer on your own. Even if you know the precise problem, rectifying the cracks in the potentiometer is exceedingly challenging. When it comes to a malfunctioning direction switch, it is advisable to substitute it with a new one. No amount of repair work can restore the original functionality of the direction switch. In both cases, consulting a professional is your optimal choice. Alternatively, you can take your electric Yamaha golf cart to a repair shop for proper fixing.

What is the price for repairing speed controls or direction switches on an Electric Yamaha Golf Cart?

Repairing the speed controls of your electric Yamaha golf cart will set you back anywhere from $175 to $520. The steep price tag for this repair is justified by the complexity of the task. Furthermore, replacing the direction switch will only cost around $33, while an additional $21 is required for the forward and reverse handles.


To avoid incurring expensive repair costs, minimising potential damage to your vehicle is important. This troubleshooting guide for the electric Yamaha golf cart reminds you to maintain a fully charged battery and ensure the water level is above the conductive plates. It advises against putting excessive strain on the motor by continuously driving on steep surfaces. Regularly inspecting the solenoid, speed controls, and direction switch is also recommended. By properly maintaining each component of your electric Yamaha golf cart, you can ensure its longevity and optimal performance. Feel free to seek assistance from a qualified mechanic for troubleshooting if you feel unsure or overwhelmed.

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