Polaris Xplorer 300 Carburetor Hose Diagram

Polaris Xplorer 300 Carburetor Hose Diagram will provide visual representations to understand how the hoses connect with different parts of the carburetor. Basically, the diagram will show you how a series of carburetors control the engine speed. 

What is a carburetor then? Well, the carburetor is a device that controls the combustion of fuel and air that will enter the engine. We can say the efficiency of the engine mostly depends on this. 

Do you own a Polaris Xplorer 300? Don’t you understand the Carburetor Diagram? Then we are here for you with this article. We will discuss and explain the Polaris Xplorer 300 Carburetor hose diagram throughout this article. Stay with us to understand the engine and combustion better.

Parts Of Polaris Xplorer 300 Carburetor Hose Diagram 

Here we are giving the hose diagram of Polaris Xplorer 300.

Polaris Xplorer 300 Carburetor Hose Diagram
Diagram source: Partzilla

The points on the diagram indicate each of the parts of the carburetor hose. For the construction of the whole carburetor, these parts need to be installed. The name and the prices of each part are given below.

Parts Price
Chamber of mixing/Top assembly$35
Needle jet$25
Needle valve$45
Throttle spring$24
Throttle plate$15
Throttle valve $180
Needle valve packing$5
Float pin $10
Float chamber gasket$25
Float assembly$45
Float chamber assembly$120
Air screw$20
Drain plug$25

Polaris Xplorer 300 Carburetor Functional Parts

To understand the carburetor hose diagram better, you must have a clear idea about its functional parts. In brief, the parts of the carburetor are described below,

1. Throttle valve

The main purpose of the throttle valve is to control the mixture of air and fuel that will enter the system. Pressing the accelerating valve will open the throttle valve. 

2. Idling system

An idling system is a path that connects the float chamber and venturi tube. At low speeds and while idling, it provides a rich mixture. This system works when the throttle is opened below 15%.

3. Metering System

This part is responsible for controlling the flow of fuel. It ensures the exact mixture of air

4. Venturi

The function of the venturi is to reduce air pressure. It is a hollow area that gradually decreases. The fuel pipe leads the fuel to the venturi. 

5. Choke valve

It is an essential part of the carburetor that also controls the air-fuel ratio. It controls the ratio by controlling the amount of air inside the chamber. Normally, this valve stays semi-open.

If a rich mixture is needed, it operates. The choke valve is mostly used in the winter season because the engine hardly starts. When this problem arises, the valve supplies a rich air-fuel mixture. 

6. Float chamber

The float chamber can be called a storage tank because this chamber stores the fuel that gives a continuous supply. Also, a floating valve is used to maintain the level of fuel inside the chamber. 

Likewise, this Float valve moves upward with the increase of fuel level and moves downward when the fuel level is decreased. That is to enable the opening of the fuel supply valve to allow more fuel.

Generally, in winter, you may face trouble starting the engine as the engine starts rough. That’s why it’s better if the choke valve is used chiefly in the winter season. Reason is when this problem arises; this valve supplies a rich air-fuel mixture. This tool aids the starting issue in the cold seasons 

7. Strainer

The strainer’s function is to filter the fuel. Thus, the fuel which enters the float chamber is filtered before entering by the strainer. Dust and other suspended particles are removed from the fuel and make it nearly pure. If the fuel is not filtered, the nozzle will get blocked. 

Functions of A Carburetor

Here we mention the main functions of the carburetor in Polaris Xplorer 300. Read below to learn in detail. 

  • The carburetor’s main job is to let in a suitable amount of fuel and air for generating power. Under all load and engine speed situations, it is carried out at the proper strength. 
  • It consistently controls the ratio of air and fuel. 
  • The speed of the engine is controlled by the carburetor 
  • It creates a homogenous mixture of air and fuel by vaporizing the fuel. 
  • Maintain a specific head of fuel in the float chamber 
  • Burn the fuel smoothly without any problem 

Polaris Xplorer 300 Carburetor Working Principles

The main purpose of a carburetor is to pass the combustion of air and fuel mixture into the internal engine. So the working principle of the carburetor is so simple. 

  • A horizontal fuel pipe is attached to one side of the carburetor. The middle of the pipe has a slight kink where the air flows as it descends. It speeds up and loses pressure as a result of this kink. 

This kink is also recognized as venturi. The lowering air pressure creates the sucking effect that pulls air in through the fuel pipe on the side.

  • The fuel is pulled by the airflow, causing their mixture in the carburetor. 2 swelling valves cause the mixture. One of the valves is located above the venturi, which is called the choke and the other valve is located down. The choke valve controls the amount of air. 

When the choke is closed, the venturi sucks in fuel to make the engine-rich mixture of fuel. 

  • The below valve is called the throttle. This throttle specifies the amount of fuel. The throttle makes the engine release more power for fast movement of the vehicle and the vehicle accelerates. 

You need to keep the carburetor clean for better performance. Also, regular inspection is necessary to identify and fix issues in the Carburetor early. To understand this better, watch this YouTube Video.

Frequently Asked Questions

In this section, we will answer some Frequently asked questions related to the Polaris Xplorer 300 carburetor hose diagram.

Q: Is The Polaris Xplorer 300 2-stroke?

Yes, the Polaris Xplorer 300 is a two-stroke. The power of the engine comes from a two-stroke. Besides, the displacement of the engine is 283 cm3.

Q: What Will Happen If The Fuel Is Not Filtered?

It will block the nozzle. The strainer filters the fuel before entering the float chamber. If fuel enters with dust and particles, it will block the nozzle. 


The Polaris Xplorer 300 carburetor hose diagram is so easy and simple to understand. The diagram helps you to understand the construction of a carburetor. If you face any problem with the engine, you can fix this as the diagram is shown.

That’s why in this article, we tried to explain the diagram and parts of the carburetor thoroughly so that you don’t have any issues or confusion about it any further.


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