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what causes 2 cycle engine not to ideal on the low end on my g 1 yamaha 1985 golf cart

by Cathryn Kuhic Published 3 years ago Updated 2 years ago

Why does my Yamaha golf cart have no compression?

Yamaha golf cart engines in general have a pretty common problem that causes low or no compression; misplaced push rods. A push rod that’s not under the rocker arm will cause a compression problem. This is easy to check and relatively simple to fix.

How do you fix a Yamaha G1 golf cart that is slow?

A slow Yamaha G1 golf cart can be fixed by simply cleaning the battery terminals, spark plug terminals, and motor terminals. If the battery terminals are greasy, the current from the battery will be low and in turn, the acceleration will be lower than what it should be.

Why does my Yamaha G16 have no compression?

Again, all Yamaha engines tend to get their push rods out of place after some time. If the push rods, rocker support arms and oil aren’t the problem, it might be your accelerator cable. If your G16 has a broken accelerator cable then it won’t be able to run because there’s no compression.

What is the bore size on a Yamaha G1?

Might you be able to help me with this, so once it is apart I will know which direction to go. The standard bore size on a Yamaha G1 is 2.677 with .011-.013 piston to wall clearance ( std. bore 68.00mm - piston to wall clearance 0.03 - 0.035 mm ).

Why is my gas golf cart losing power?

A faulty or broken carburetor is likely the most common triggering factor for serious issues with your cart's power problems. The carburetor helps to keep your cart cleaner in operation and manages many elements of your fuel in your cart.

How do you adjust the carburetor on a Yamaha golf cart?

How to Adjust Yamaha Golf Cart CarburetorPull out the pilot adjustment screw. ... Rethread the screw back until it's slightly seated.Turn the screw outwards by 1-1/2 turns.Push the throttle stop screw backward until the throttle shaft is closed completely.Turn the screw in by a 1/4 turn.

Why does my 2 stroke golf cart backfire?

The golf cart backfires through the carburetor because of an open throttle plate. The accelerator cable at the scale is out of adjustment and, in turn, stops the vessel from closing when the microswitch makes contact with the ignition.

Why is my golf cart sputtering?

Golf carts can spit and sputter for several reasons, but mainly due to worn out spark plugs or dirty filters inside the fuel system. There might be something wrong with the fuel system of your cart. You could be having a spit and sputter problem because the filter, pump and injectors in your golf cart are very dirty.

Why does my golf cart backfire when I let off the gas?

The golf cart backfires when you let off gas is because the carburetor butterfly isn't getting closed completely. Air suction from the exhaust gasket is another possible cause. Checking the carburetor and adjusting the return spring to its original position so that the carburetor is closed solves the problem.

Why does my golf cart only run with the choke on?

Dwight Coleman there are usually only a few possibilities if it only runs with the choke. One cause could be an air leak on the carb, head gasket, crankshaft seal. The other could be a clogged low speed and idle circuit.

How do I stop my golf cart from backfiring?

Start by carefully removing the drive belt with the engine off and then tweaking the adjustment screw as the engine is running. Adjust the screw until the engine is running as smoothly as possible. Now, you can fully tighten the screw, turn off the engine, and replace the drive belt to start your cart up again.

How do you adjust the governor on a Yamaha golf cart?

0:005:15Yamaha G29 Drive Golf Cart Governor Adjustment - MORE SPEED!!YouTubeStart of suggested clipEnd of suggested clipItself by tightening this nut down you're putting more pressure on the spring. So that the governorMoreItself by tightening this nut down you're putting more pressure on the spring. So that the governor has to work harder to pull back on the throttle.

How do you adjust the throttle on a golf cart?

Pull the spring that is present around the plastic piece located behind the shifter. Spin it until it falls back. Loosen the throttle cable present in the cable box to adjust the extent to which you can take it out of the housing. Press the accelerator so that the golf cart starts up and begins to idle.

What causes sputtering on acceleration?

One of the most common causes of a sputtering engine is an issue with the vehicle's fuel system—the filter, pump, and injectors. These three critical components work together to ensure fuel flows smoothly from the fuel tank to your engine's fuel injectors, and then pumps into the engine evenly.

How do you fix an engine sputter?

A sputtering engine may just mean you need to have your fuel filter replaced. All vehicles have a series of vacuum hoses that create the fuel pressure. If one of them leaks or is damaged in any way, you will lose significant fuel pressure. The vehicle's exhaust system can greatly impact the engine's performance.

Why does my golf cart jerk when I accelerate?

Why does my Club car golf cart jerk when accelerating? The main reason why a Club car golf cart jerks when you accelerate it is due to a misaligned Inductive Throttle Sensor or dirty clutch.

What engine does an 1985 EZ Go Golf Cart have?

I HAVE AN EZ GO GOLF CART 1985 WITH A ROBIN 2 CYCLE ENGINE, IT HAS VALVE WITH IMPLUSE FUEL PUMP... I REBUILT THE ENGINE

What year was the Robin engine golf cart?

1988 Robin engine golf cart. I have a tinny or jingling sound

Why does my Yamaha G1 cart sluggish?

The motor terminals need cleaning too, if the motor terminals are greasy or loose, the power received by the motor will be low, which lowers the speed of the cart. Keeping them tight and clean can help fix the sluggish speed of your Yamaha G1.

Why is my Yamaha golf cart so slow?

The main reason why a Yamaha golf cart runs slow is because of low battery charge, dirty battery terminals, or a loose spark plug. A Yamaha golf carts slow speed can be traced to other reasons as well: A battery with a low charge. Loose or dirty battery terminals. Conductor plates are not exposed to enough distilled water.

Why is my Yamaha golf cart so slow to start rolling?

If the spark plug is loose or dirty , a Yamaha golf cart will be slow to start rolling as the torque delivered will be lower than the expected value. Cleaning and maintaining the spark plug gap can help fix this issue. The electrode color for the spark plug is expected to be tan.

How to fix a slow Yamaha G2?

A slow Yamaha G2 golf cart can be fixed by replacing the spark plug and damaged wires.

How can the speed of a Yamaha golf cart be increased?

The speed of a Yamaha golf cart can be increased by increasing the torque produced by the golf cart.

How fast does a Yamaha golf cart go?

How to Make a Yamaha Golf Cart Go Faster. Yamaha Golf Carts, on average, offer speeds of around 15mph. Many users wish to get a bit more from their golf carts by increasing the speed by another 4-5mph.

How to check battery voltage on Yamaha golf cart?

The pack voltage of the batteries installed on your Yamaha golf cart can be checked by connecting a voltmeter to the positive and negative terminals of the battery. When going uphill, brakes and bearings tend to drag the cart back if they have not been lubricated properly.

Carburetor

More often than not, golf cart backfiring is caused by the throttle plate inside the carburetor being slightly open. This allows fuel to flow into the cylinder before the ignition system is activated to produce a spark for combustion.

Accelerator Cable

In almost all cases, whether it is a 2 cycle or 4 cycle engine, golf cart backfiring is caused by the accelerator cable being out of adjustment at the throttle plate of the carburetor. This problem has a relatively simple cure.

Adjustment

For proper symbiosis between the fuel and ignition systems, the accelerator micro switch must click BEFORE the throttle lever of the carburetor moves. The accelerator cable may move through the plate, but the plate itself cannot move prior to the micro switch click.

What was the first Yamaha cart?

Yamaha’s premiere cart in 1979 was the G1A Model J10 Gas-powered vehicle that featured an Autolube Oil Injection System to supply oil to the engine in precise oil-to-gas ratios. This eliminated the premixing of the oil and gas and improved combustion, oil consumption, and carbon buildup. In 1980, Yamaha introduced the G1E 36 volt Electric J14 series.

What is a golf cart?

Golf carts are also known as golf cars. The term "cart", in its purest sense, refers to a vehicle that does not travel under its own power. Golf cars, however, are most commonly referred to as golf... link to Club Car DS Wiring Diagrams 1981 To 2002.

What is an electric cart solenoid?

The first generation electric cart had solenoids (or relays) that had all terminals on one end of the unit. These solenoids are no longer available and are replaced with a model with terminals on both ends. Below is the retrofit for replacing these with a contemporary solenoid.

How to tell if a golf cart has low compression?

To check if pressure is escaping your golf cart’s engine, you have to check the compression in the cylinders of your engine using a compression gauge.

What compression should a golf engine have?

The vast majority of gas engines should have a compression of about 150 psi. If your golf engine is new then your compression should be between 150psi – 160psi. A used engine that’s still in decent enough shape should be at around 120psi to 140psi.

How to remove spark plug from cart engine?

Put a socket wrench over the spark plug and loosen it till you can remove it from your cart engine.

Why do people use lower compression engines?

If all these advantages are true, why do people use lower compression engines? Cost; high compression engines need premium, high-octane gasoline to run properly. Also, they’re made of higher quality metals to withstand the stress of being high compression so the engines are expensive.

Why is my golf cart losing power?

If your golf cart has been losing power or has been running less than smoothly, it might be because of a lack of pressure in its engine’s cylinders. If that’s the case, it’s probably time to do a compression test on your golf cart.

Why does my engine burn?

This is usually because of too much heat in the combustion chamber . If you have a burnt piston, it’ll cause low compression in your engine because your burnt piston can’t work properly.

How to remove cylinder cover from engine?

If your engine has a cylinder cover, unscrew it and then take it off using a screwdriver. This is so that you can access your engine’s spark plug.

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