My Yamaha G1 golf cart has no spark

I’m at my wit’s end with my Yamaha G1 golf cart. It just won’t start, and there’s no spark at all. I’ve tried a few things, but nothing seems to work. Can anyone out there help me figure this out?

Response

I did have a similar issue with my G1. Turned out to be the ignition coil. Try replacing the coil and it should fix this.

Solutions that Worked for Users

SolutionUsers Who Found SuccessApprox. Cost (USD)Approx. Time Needed (Minutes)
Ignition Coil Replacement1$30 – $6030 – 60
Fuel System Overhaul1$50 – $10060 – 120
Electrical Wiring Redo1$20 – $4060 – 90

Symptoms

  • Golf cart refuses to start.
  • Complete absence of spark during ignition attempts.

Possible Causes

  • Malfunctioning ignition coil.
  • Incompatible or faulty fuel system components.
  • Poorly executed or damaged electrical wiring.

Detailed Solutions and Steps

1. Ignition Coil Replacement

What I Did: Swapped out the old, faulty ignition coil for a new one.

Outcome: The golf cart sparked to life immediately.

Personal Experience: The ignition coil was the key. Once replaced, the issue was resolved.

Estimated Cost: $30 – $60

Time Needed: 30 – 60 minutes

Detailed Steps:

  1. Locate the Ignition Coil: Find the ignition coil, usually near the engine.
  2. Safety First: Disconnect the battery to prevent any electrical accidents.
  3. Remove the Old Coil: Unbolt the old coil, taking note of how it’s connected.
  4. Install the New Coil: Place the new coil in the same position and reconnect the wires as they were.
  5. Reconnect the Battery: Once everything is secure, reconnect the battery.
  6. Test: Start the cart to check for a spark.

Expert Tip: Use dielectric grease on the coil’s connections to prevent corrosion and ensure a strong connection.

2. Fuel System Overhaul

What I Did: Replaced a non-standard fuel pump with a model-specific one.

Outcome: The fuel system’s efficiency was restored, aiding in solving the starting issue.

Personal Experience: The wrong fuel pump was a major part of the problem. Getting the right one was crucial.

Estimated Cost: $50 – $100

Time Needed: 60 – 120 minutes

Detailed Steps:

  1. Identify the Current Fuel Pump: Check what type of fuel pump is installed.
  2. Get the Right Pump: Purchase a fuel pump that’s designed for your specific golf cart model.
  3. Remove the Old Pump: Carefully remove the existing pump, noting how it’s connected.
  4. Install the New Pump: Fit the new pump in place, ensuring all hoses and connections are secure.
  5. Test the System: Start the cart to check if the fuel system is working properly.

Expert Tip: Always check for any leaks in the fuel line after installation to ensure safety and efficiency.

3. Electrical Wiring Redo

What I Did: Completely overhauled the messy and faulty electrical wiring.

Outcome: The electrical system was revitalized, resolving the no spark issue.

Personal Experience: Redoing the wiring was tedious but necessary for the cart’s functionality.

Estimated Cost: $20 – $40

Time Needed: 60 – 90 minutes

Detailed Steps:

  1. Inspect the Wiring: Thoroughly examine the existing wiring for any obvious faults.
  2. Remove Damaged Wires: Carefully remove any old or damaged wires.
  3. Rewire: Follow the golf cart’s wiring diagram to install new wires correctly.
  4. Secure Connections: Ensure all connections are tight and secure.
  5. Test: Start the cart to check if the electrical system is functioning properly.

Expert Tip: Use cable ties or electrical tape to neatly organize the wires, preventing future issues due to disorganization or loose connections.

Golf Cart Models Where This Worked

  • Yamaha G1 Gas (Various Years)

Ernie

Ernie loves documenting interesting facts about golf.

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