6 Common G1 Yamaha Golf Cart Problems and Fixes

It is pretty much inevitable that you will experience issues while trying to drive your G1 Yamaha Golf cart. Loss of power in your Yamaha G1 golf cart can be the result of a number of issues.  A faulty clutch, a sloppily calibrated carburetor, or a worn-out drive belt can all contribute to this problem. Your Yamaha G1 golf cart might not be able to come to a complete stop and turn off if the wiring is faulty, the solenoid is stuck, or the pedal stop switch is stuck.

The severity of G1 Yamaha Golf Cart concern may vary. Some are easy enough to diagnose and correct with a few inexpensive parts and some basic mechanical know-how at home.

Common Problems with G1 Yamaha Golf Carts And Solutions At a Glimpse:

CompressionMaintaining a certain compression
Frame rustCleaning the frame or replacing the frame
Oil Injector & Oil sealsInspect the crankshaft for grease behind the primary clutch
Clutch issuesRemove the lid and clean it regularly
Drive belts and Old gasCheck regularly to ensure they are within tolerances
Fuel pumpsRebuild it or clean it up

The majority of the G1 carts are fairly old and see a lot of use, therefore the problems that arise typically relate to one of the cart’s component parts.

1. Compression

Worn rings of the piston or oil seals are the most likely culprits when compression drops.


For optimal performance, compression should be about 100 psi, whereas after a complete rebuild, it should be between 120 and 130 psi. If you have a 1982 model, I’m afraid your engine has a lower compression rate of roughly 90-100psi and can’t keep up. Yamaha’s attempt to reduce emissions and noise levels began with the 1982 model year, but by 1983, the company had abandoned that direction after realizing the model’s performance had suffered as a result.

2. Frame rust

Rust in the frame, especially around the battery tray, is a persistent problem. Many folks don’t bother to replace the old tray after having it cut out.

Reduce the Frame rust:

There are a few different options for replacing the tray, however it will probably require some special fabrication. The project will require the use of new metal angles, metal sheets, a new hold bar, some cutting, welding, and painting. The swing arms and cross tubes also see a lot of use, but they rarely get washed, so they tend to accumulate a lot of dirt and filth. The same goes for repairing custom-made items.

3. Oil Injector & Oil seals

Oil Injector failures are not that common, but they happen. On the other hand, crankshaft oil seals tend to wear very quickly. Oil seals are a common culprit when a golf cart won’t start or operates poorly.

Resolving the Oil Injector Failure Issue:

Even though oil injector failure is uncommon, it can have a devastating effect on an engine. Seals that have worn out will result in decreased compression as well as poor performance. Have a look at the crankshaft for signs of grease or moisture behind the primary clutch. It’s likely that the seals will need to be replaced if this is the case.

4. Clutch issues

Issues with the clutch will reduce the vehicle’s speed and power. Grease and grime can build up on the primary clutch and prevent it from engaging.

Solution to the Clutch Issues:

The performance degradation can be greatly reduced by removing the lid and cleaning it on a regular basis. Remember to apply a very small amount of grease on the shaft; otherwise, it may fly out of the clutch housing. It’s common for the secondary clutches to break or “dish out” due to wear and tear. As a result, the cart may not be able to reach its top speed very quickly or may have no low-end power at all.

5. Issues with Drive belts and Old gas

Worn or broken drive belts can hinder acceleration and transmission. In reality, this fundamental aspect of maintaining a vehicle is often overlooked: replacing the old gas.

Fixing the Broken Drive Belts:

Belts should be checked and replaced on a regular basis to ensure they are within tolerances. Carts that have been sitting for an extended period of time may have stale gas. In a similar vein, the gas in the gas can from a long time ago might not be very good. Attempt a new plug and some fresh gas if the old one isn’t getting the job done on your golf cart. Be sure to top off the oil tank!

6. Issues with Fuel pumps

These carts have a high failure rate for their fuel pumps.

Solving the Fuel Pump Issue:

You can rebuild it or clean it up; read up on how to do that. You can get a brand new one for somewhere between $40 and $50. You can also rig up a petrol pump from a vehicle. If there is no fuel coming out of the carburetor, check the fuel pump and the fuel filter.

A Regular Check-Up Checklist to Avoid All Potential Issues:

  • Lubricate the auxiliary clutch so it can be removed from its locked position and readily shifted up and down. You might also consider removing it, properly cleaning it, then reinstalling it.
  • If you observe that the keys are broken or worn out, change the slider unit entirely.
  • Replace the snap ring in the groove where it was likely to have fallen off. It’s a good idea to clean this area before repositioning the ring.
  • Check that the drive chain would be neither too tight nor too loose. Adjust it to achieve the desired tension.
  • Wipe the fan and cooler blades on the cylinder completely so that they can move freely.
  • Change the crank sealing if it is broken or even slightly cracked, as this might allow oil to leak.
  • Perform a compression test on the engine with a compression tester to confirm that it has the required compression.
  • Wipe a congested or jammed muffler to ensure that it is fully clean and free of dust or dirt.

What kind of motor powers a Yamaha G1 golf cart?

This golf automobile, which replaced the small, powerful, and lightweight YG-292, was propelled by a two – stroke gas engine.

What is the Yamaha G1 golf cart’s horsepower?

With a highest performance of 8.5/11.4 hp and 25.5/2500 torque, it incorporates electronic fuel injection.

What is the size of a Yamaha G1?

With a height of 5 feet 3 inches, the Yamaha G1 is a manageable size for lounge room and practice spaces while yet producing a rich, clear tone.

What distinguishes the Yamaha G1 from the G2?

The Yamaha G1 is quite similar to the Yamaha G2, except it is a little smaller. Following the G2, the G3 is the following size up. The C series pianos, which took the place of the G models and only slightly differed in appearance, are quite similar in both performance and quality. Because they are a little older, the G series is less expensive.

Final Words

You might be able to fix it quickly and simply on your own if you have the correct equipment and put in a little work. But regular golf cart maintenance is the best way to avoid basic challenges with G1 Yamaha Golf Carts. It is a given that some problems will still bother you even if you take good care of it and keep an eye on it from time to time.

If you can’t fix a problem with your car yourself, take it to a technician. Prior to that, we’d be happy if this article assisted you deal with some of the problems that give you headaches.

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