I need some help with my Yamaha G1 golf cart. The oil pump seems to be acting up, and I’m worried about engine damage. Has anyone successfully tackled this issue? I could really use some step-by-step guidance here.
Response
I had a similar concerns with my G1 cart. What ended up working well for me was adjusting the throttle stop screw and keeping a close eye on the oil flow. It was a bit of a waiting game, but seeing that oil trickle was a huge relief.
Solutions that Worked for Users
| Solution | Users Who Found Success | Approx. Cost (USD) | Approx. Time Needed (Minutes) |
|---|---|---|---|
| Adjust Throttle Stop Screw and Observe Oil Flow | 2 | $0 | 30 – 60 |
| Premix Gas and Oil at 100:1 Ratio | 1 | $5 – $10 | 10 – 20 |
| Bleed the Oil Pump | 1 | $0 | 30 – 45 |
Symptoms
- Lack of visible oil flow in the pump lines.
- Engine performance issues due to insufficient lubrication.
- Potential risk of engine damage from dry running.
Possible Causes
- Air blockages in the oil lines.
- Oil pump priming issues.
- Incorrect settings or mechanical faults in the oil pump.
In-Depth Solutions that Worked
- Adjust Throttle Stop Screw and Observe Oil Flow
- What I Did: Carefully adjusted the throttle stop screw to lower the engine RPMs and monitored the oil line.
- Outcome: Observed successful oil flow, indicating the pump’s functionality.
- Personal Experience: Required patience and a keen eye to notice the oil movement.
- Detailed Steps:
- Locate the throttle stop screw, usually found near the carburetor.
- Use a screwdriver to gently adjust the screw, reducing the engine’s RPM.
- Start the engine and carefully observe the oil line for any movement of oil.
- Wait for a few minutes as it might take time for oil to appear.
- Expert Tip: Keep the engine running at a safe, low RPM to avoid overheating or damage during this test. Listen for any unusual engine noises.
- Premix Gas and Oil at 100:1 Ratio
- What I Did: Mixed the oil with gas in a 100:1 ratio as a temporary fix.
- Outcome: Ensured temporary engine lubrication.
- Personal Experience: A quick solution to protect the engine while resolving the oil pump issue.
- Detailed Steps:
- Calculate the correct oil amount for your specific gas volume.
- Thoroughly mix the oil with the gas in a clean container.
- Pour the mixture into the fuel tank and shake gently to ensure even distribution.
- Use this mix until the oil pump is fixed.
- Expert Tip: Always use high-quality two-stroke oil for the mix. This solution is not a permanent fix but a stopgap to prevent engine damage.
- Bleed the Oil Pump
- What I Did: Performed a thorough bleeding of the oil pump to remove air.
- Outcome: Restored proper oil flow through the pump.
- Personal Experience: A technical process but highly effective.
- Detailed Steps:
- Find the oil pump’s bleeder screw, typically located on the pump’s top or side.
- Use a Phillips head screwdriver to loosen the screw slightly.
- Wait for oil and air bubbles to escape from the bleeder hole.
- Once a steady stream of oil is observed, tighten the screw back.
- Check the entire oil line for any signs of air pockets or leaks.
- Expert Tip: Regular maintenance of the oil pump is crucial. After bleeding, run the engine for a short period and recheck for any air leakage.
Safety info
- Regular Maintenance: Regularly check your oil pump and lines for any signs of wear or leakage.
- Use Correct Oil: Always use the oil type recommended for your specific golf cart model.
- Monitor Oil Levels: Keep an eye on the oil tank level to ensure proper oil flow and pump operation.
Extra tips
- Oil Pump Adjustment: Some G1 models have an adjustable oil pump. Consult your manual for specific adjustment procedures.
- Oil Quality Check: Periodically check the quality of the oil in the tank. Contaminated or old oil can cause pump issues.
Golf Cart Models Where This Worked
- Yamaha G1 Golf Cart (Various Years)