Two-wheeler terminology every biker should know

Across the length and breadth of India, you will find numerous families who use a two- wheeler as their primary mode of transport. While many people do basic research before purchasing a two-wheeler, few understand how a bike engine works. Whether you’re a seasoned rider or a new enthusiast, understanding the heart of your ride is essential. Let’s unravel a few mysteries by exploring crucial two-wheeler engine terminology every biker should know.

Two-wheelers come with different types of engines, primarily the four-stroke and two-stroke engines. Each type has its own set of characteristics, affecting factors such as fuel efficiency, power delivery, and maintenance requirements. Let’s better understand the basic bike engine working principles of both engines.

As the name suggests, four-stroke engines have four valves. The pistons go through four events to complete one four-stroke cycle. A piston motion, either upward or downward, is defined as an event. The four strokes necessary for a four-stroke bike engine working are intake stroke, compression stroke, power stroke, and exhaust stroke. After these four events, the cycle is complete and ready to restart. Four-stroke engines provide a good balance of power, reliability and efficiency. They mechanically separate each event, reducing unburned fuel emissions. These engines also separate oil from fuel, significantly reducing carbon monoxide emissions.

Two-stroke engines complete only two events in a single cycle. Initially, these engines were popular on dirt bikes. However, they have become illegal in India since 2019. Till today, many people still wonder - how does a 2-stroke dirt bike engine work. Unlike four-stroke engines, these engines use ports for the flow of the air-fuel mixture and exhaust through the engine. The piston controls when the ports open and close during the cycle. The engines have a lower lifespan, higher emissions, and less fuel efficiency than four-stroke engines.

A V-twin engine is a type of internal combustion engine with two cylinders arranged in a V-shaped configuration. The cylinders are typically positioned at an angle to each other, forming a V shape when viewed from the front or rear of the engine. V-twin engines are known for their compact design, which allows them to fit well within the frame of motorcycles. This design helps achieve a more centralized mass, contributing to better balance and handling.

The method by which fuel is mixed with air and delivered to the engine varies between carburetted and fuel-injected systems

A two-wheeler carburettor is a device used in the fuel system of an internal combustion engine to mix air and fuel in the correct ratio before it enters the engine. It is a crucial component for the engine’s proper functioning. The carburettor regulates the airflow through its main body and mixes it with the appropriate amount of fuel to create a combustible air-fuel mixture. This mixture is then sent to the engine’s combustion chamber for ignition.

The fuel injection system delivers fuel to the engine in a precise and controlled manner. It has become the preferred method over the traditional carburettor system. In fuel injection, the fuel is injected directly into the engine’s combustion chamber through an injector controlled by an electronic control unit (ECU). The ECU monitors various engine parameters, including throttle position, engine speed, and air intake, to determine the amount of fuel required. Fuel injection systems are more efficient and precise than carburettors, resulting in better fuel economy, lower emissions, and improved performance.

Two-wheeler engines have two kinds of valves - intake and exhaust. The intake valve controls the flow of the air-fuel mixture into the combustion chamber. After combustion, the exhaust valve controls the exit of the exhaust gases. The carefully controlled timing of the opening and closing of these valves ensures efficient engine operation. Engine valves ensure the proper functioning of the combustion engine. They require regular maintenance and adjustment to ensure optimal engine performance.

Now that you understand the crucial terms related to your two-wheeler engine, let’s explore some key insurance phrases you should know as a two-wheeler owner.

Your premium refers to the amount you pay annually to maintain your bike insurance coverage.

The IDV refers to the current market value of your two-wheeler. It represents the maximum amount the insurance company will pay in case of theft or total loss to your vehicle.

Also Read: IDV in Two-Wheeler Insurance

A deductible is the portion of the claim amount that you agree to pay before the insurance coverage kicks in. Opting for a higher deductible can lower your premium but increase your out-of-pocket expenses during a claim.

Add-ons are optional features that you can add to your standard insurance policy for enhanced coverage. Examples include zero depreciation cover, roadside assistance, and accessories coverage. Assess your needs to choose add-ons that suit your riding style.

Understanding how your engine functions and educating yourself on key insurance terms enables you to make informed decisions about your two-wheeler. Before you purchase your next vehicle, ensure you find a two-wheeler whose engine works for your needs. Additionally, visit the Zuno website to browse our two-wheeler plans and identify the ideal policy to protect your bike.

ARN: Zuno/Blog/Two wheeler terminology every biker should know/03/24/02.

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