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Toyota Forklift Carburetors - Reliable OEM and Aftermarket Replacement Parts for Your Lift Trucks

Table of Contents

  1. Summary
  2. Does My Toyota Forklift Have a Carburetor?
  3. How does a Toyota Forklift Carburetor Works?
  4. How do I Know If My Toyota Forklift Carburetor Needs Adjusting?
  5. How do You Adjust a Toyota Forklift Carburetor?
  6. How to Choose the Right Toyota Forklift Carburetor Replacement?
  7. Buy Your New Toyota Forklift Carburetor at Lift Parts Warehouse
  8. Takeaways


Most of today's internal combustion (IC) engine vehicles, including forklifts, use direct injection to run. But, Toyota forklifts are so reliable that even models over 20 years old are still working. Many of these vehicles use a Toyota forklift carburetor, especially those that run on LPG. So if you're looking for information on your Toyota Forklift's carburetor, you've come to the right place. We at Lift Parts Warehouse want to share what you should know about this component and what to consider when replacing it.

Does My Toyota Forklift Have a Carburetor?

If your Toyota forklift model was manufactured after 1999, it is improbable that it will run on a carburetor. Carburetors were the standard for internal combustion engines until 1980. Still, they began to be replaced by the direct fuel injection system because it was much more efficient in controlling the amount of fuel that entered the engine cylinders.

 A group of LPG fuel storage powered Toyota Forklifts stored in a warehouse. This new generation of Toyota lift truck uses a mixer instead of carburetor to mix air and fuel
If your Toyota forklift was made up before than 1999 it probably runs with a carburetor

Even though Toyota forklift carburetors are not as standard as they used to be, they are still widely used on many older Toyota lift trucks worldwide. One advantage of older models of Toyota forklifts is their simple design, making them easy to maintain.

New aftermarket Toyota forklift carburetor replacement. Part number: 21100-78177-71
Carburetor replacement for Toyota lift trucks: 21100-78177-71

If your Toyota lift truck runs on LPG, it will likely run on either a mixer or a carburetor. Both elements perform the same function, although the mixer has become more popular over time. In any case, LPG-powered forklifts are highly demanded since they represent a much cheaper alternative in terms of fuel than diesel or gasoline engines.

How does a Toyota Forklift Carburetor Works?

The carburetor is responsible for mixing the air and fuel properly before entering the engine. It does this by sucking in air from the atmosphere and combining it with a small amount of fuel. This mixture then goes into the engine, which is combusted to create power.

Old forklift carburetor model where you can see clearly the external operating mechanism.
Carburetors mix air and fuel together so they can be burned in the engine

A Toyota forklift carburetor consists of an open tube through which air passes into the engine's intake manifold. The tube tapers in the middle section and then widens again, causing the airflow to pick up speed at the narrowest part. Underneath is a butterfly valve called a throttle valve, a rotating disk that allows or blocks the flow of air, thus regulating the power and speed of the engine.

Fuel is drawn into the air stream through small holes in the narrowest part of the venturi and in other places where the pressure will be low. Fuel flow is adjusted by precisely calibrated holes in the fuel path.

Cross view of the internal mechanism of a float-type Toyota forklift carburetor
Internal mechanism of a float-type carburetor

There are two types of carburetors - float type and diaphragm type. The float type carburetor uses a float to regulate the fuel level in the bowl. The diaphragm type carburetor has a diaphragm that pulsates to draw fuel from the bowl.

How do I Know If My Toyota Forklift Carburetor Needs Adjusting?

Like any other machinery, a forklift carburetor needs to be properly maintained to function correctly and extend its lifespan. One of the key maintenance tasks is to adjust the carburetor regularly. This ensures that the engine operates at peak efficiency and that the emissions are within acceptable levels.

Toyota forklift carburetor out of calibration
It is important to adjust your Toyota lift truck's carburetor on time so that it runs smoothly

Below we summarize the main symptoms that indicate that the carburetor of your Toyota forklift needs to be adjusted.

  • Your Toyota forklift has a hard time starting, especially in winter.
  • Your Lift truck does not run idle as it should as it regularly experiences rough or rapid idling.
  • Your forklift engine usually stalls when you let go of the throttle pedal.
  • The Toyota forklift has a hard time responding to acceleration.
  • You notice a lot of smoke coming out of the exhaust.
  • You have to refuel your Toyota forklift more often than you used to.

The frequency of carburetor adjustment will vary depending on factors such as usage, climate, and fuel type. However, if you stay aware of these signs, spotting early that your Toyota forklift carburetor needs an adjustment will be easy. With proper care, your carburetor will provide years of trouble-free service.

How do You Adjust a Toyota Forklift Carburetor?

Adjusting the carburetor on your Toyota forklift is not a difficult task. In fact, it can be done relatively quickly if you have the right tools. Below are the steps you need to take to complete the adjustment process.

A Mechanic adjusting the carburetor of an old Toyota forklift
Carburetor mechanisms are simple and easy to adjust

  1. Detach the engine air filter. Locate the mouth of the air filter that connects to the carburetor. Disconnect it by removing the clamp.
  2. Adjust the air-fuel mixture. You can adjust the air-fuel mixture with a flat head screwdriver. Depending on the model, there may be up to four screws to adjust the air-fuel intake. To be safe, use the manual corresponding to your Toyota forklift model.
  3. Pay attention to the engine's condition. If you have trouble starting the engine on your Toyota forklift, and it then runs lean, it may mean that there is too much air and not enough fuel going into the carburetor. Alternatively, if the lift truck starts quickly but runs worse as the engine warms up, or if it starts to use a lot of fuel and a lot of smoke comes out of the exhaust pipe, it means that too much fuel and not enough air is entering the carburetor.
  4. Re-adjust air-fuel mixture screws. When making any adjustments, it is crucial to do so in small increments. When the engine runs smoothly, the idle speed will remain stable, and the engine will run smooth and balanced without misfiring or jerking. It should also accelerate smoothly throughout the all rpm range without any issue when applying the throttle.
  5. Locate and adjust the idle mixture screw. The idle mixture screw controls how much air and fuel mix when the engine is idling. The location of the screw can change depending on your lift truck model. Once you know where it is, adjust the screw until the engine idles smoothly without misfiring or jerking.
  6. Reinstall the air filter, and test drive the vehicle. After adjustments to the air and fuel control screws have been made, reattach the air filter back to the Toyota forklift carburetor.

How to Choose the Right Toyota Forklift Carburetor Replacement?

If you are about to change your Toyota forklift carburetor and you don't know where to start, don't worry; it's easier than you think. In the market, spare parts can be classified into 3 categories: OEM, aftermarket, and used parts. Each of them has its advantages and disadvantages. Let's take a look at them.

Replacement parts from the company that made the original equipment are called OEM parts. This means they are made by the same company that made the original equipment. They are designed to fit the corresponding models perfectly. They are also the most reliable, but they are also the most expensive.

In contrast, aftermarket parts are replacement parts that third parties have manufactured. They have the advantage of being more affordable and usually tend to fit in many models, even from different brands.

The last option you can consider is buying a used piece of equipment. This is usually the cheapest option, but it doesn't usually come with guarantees. You'll need to ensure that you have the right one for your needs, which can take up much of your time.

With this information, the final decision is yours. When you need to replace the carburetor of your Toyota forklift, evaluate your budget and which of these three alternatives best suits your needs.

Buy Your New Toyota Forklift Carburetor at Lift Parts Warehouse

When you need to change the carburetor on your Toyota forklift, there is no better place to find a new replacement than at Lift Parts Warehouse. In our online catalog, you will find various carburetors adaptable to many Toyota forklift models.

Aftermarket replacement carburetor for Toyota lift trucks: 21100-78150-71

All our products in stock have a one-year warranty. In addition, thanks to our delivery service, you will be installing your new Toyota forklift carburetor in a few days. Do not miss this opportunity. Investing in a new carburetor for your Toyota forklift will guarantee many years of good performance.


A lot of Toyotas forklifts that use carburetors are still working today. People consider them to be reliable machines. Even though they're old, they're still a cost-effective option for many people. Unlike newer equipment, they're easy and cheap to maintain. If you need to replace your Toyota forklift carburetor, don't hesitate to contact Lift Parts Warehouse. We will always be there for you with whatever you need. Remember that Lift Parts Warehouse is your go-to source for all your lifting needs.

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