ATV Engine Parts Buying Guide

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ATV Engine Parts Buying Guide

Riding an ATV is popular around the world. Whether used for commercial purposes or for pleasure and entertainment, the ATV owner relies upon his vehicle being in good working order. The major component of this machine is the engine. Many ATV owners enjoy doing more than routine maintenance on their vehicles. If the engine should falter or fail, many owners prefer to repair it themselves. Some may elect to upgrade their engine. This involves adjusting the internal combustion engine to increase the power output, economy, or durability.

Whether purely for the enjoyment of working on an ATV engine as a hobby or because it saves money on repair bills, or a bit of both, the ATV owner needs to find parts for the engine repair or rebuild. Researching and becoming familiar with a brief background and history aids the consumer in making an intelligent purchase decision. Learning about the uses of ATVs and the types, parts and manufacturers of ATV engines and engine parts give the consumer a framework upon which to build his ATV engine part purchase. ATV engine parts can be purchased from online and brick and mortar ATV parts dealers, mechanics, and junk shops. The easiest and most convenient place to search is on eBay Motors.

Background and History Of ATVs

"ATV" is an abbreviation for "all-terrain vehicle". This is a vehicle equipped with treads, wheels, or both and is engineered to travel diverse, rough ground and roads. ATVs are descendants of motorcycles. Their history is traced to the 1960s and Honda in Japan.The original ATV was designed by Honda engineer Osamu Takeuchi. Takeuchi was asked by Honda in the United States to create a product that would be marketable when motorcycle sales dropped off during the winter months. The first vehicle designed by Takeuchi was a three-wheeled vehicle and was introduced to the American market in 1970.

The Uses of ATVs

ATVs are used primarily off-road. Very few are built and equipped to be driven on the road and cannot be registered for that purpose unless they meet specific guidelines, such as having a sit-in seat for the driver in which the driver does not use his weight to steer the ATV or to control stability. Sit-astride ATVs are defined as a motorised vehicle engineered to drive on four low-pressure tyres on unpaved terrain, having a seat created for straddling by a single operator who uses handlebars, and his weight, for control of the vehicle. These may include a special seat behind the ATV operator for use by a passenger. In recreational use, these vehicles are often called quads. In agricultural use they are usually called ATVs, and in forestry use the vehicles are often called ATCs or all-terrain cycles.

ATV Engines

ATV owners should have at least a working knowledge of their vehicle's engine and review a diagram of the engine and the component parts. This makes troubleshooting an engine problem much easier to accomplish. Even without being a tinker or a mechanic, an ATV owner may gain sufficient knowledge by reviewing the vehicle's manual and examining his engine design and parts in advance of engine trouble. Performing recommended maintenance on the engine prevents many problems, but with age and use all engines likely need repair and replacement parts at some point.

Types of ATV Engines

There are both two-stroke and four-stroke ATV engines available. Which type is better is a topic debated among ATV owners and enthusiasts alike. In simple layman's terms, a two-stroke engine is described as simple in its construction and operation. The three major moving parts are the piston, connecting rod and crankshaft, sometimes called the crank. There are also varieties of the two-stroke engine itself.

The term "stroke" refers to intake, compression, combustion and exhaust. In a two-stroke engine, the piston completes this cycle by moving up and down once and in the four-stroke engine, it does it twice. Advocates of the two-stroke engine say that there is more power since the piston moves up and down only one time to generate the same amount of power with the same size cylinder that the four-stroke engine must move up and down two times to generate.

Engine Parts and Manufacturers

There are many component parts in an ATV engine, but the major ones are the piston, crankshaft, camshaft, gaskets, clutch, carburettor, valves, filter, and spark plugs. All of these parts must be in good working order for the engine to function optimally. A piston works by transferring force produced by the expansion of petrol in the cylinder to the crankshaft by way of the piston rod. The carburettor is the component that blends air and fuel inside the engine. The clutch allows power to be transmitted from one part to another when it is engaged. The camshaft operates valves called "poppet valves" inside the engine. The poppet valves are used to control the timing and amount of petrol flowing into the engine. The air filters keep abrasive particles from the inside of the engine's cylinders where the particulate matter would wear away at the components.

Evaluate Needed Parts

The consumer evaluates the ATV engine using the troubleshooting tips provided in the ATV owner's manual. The diagram of the ATV engine and its component parts is a guide to evaluating which parts have deteriorated and need to be replaced if the engine is not functioning properly. Owners that desire increased performance of their engines typically either know the components necessary or need to consult mechanical manuals or third parties.

Branded and Third Party Parts

There are numerous manufacturers of ATV engines and engine parts. Arctic Cat, Honda, Kawasaki, Harley-Davidson, Polaris, Suzuki, Quadboss, and Wiseco Yamaha are well-known brands. Some manufacturers produce ATVs themselves and some produce or distribute parts for vehicles. Parts produced by the manufacturer of an ATV or other vehicle are called OEMs or Original Equipment Manufacturer parts. Those produced by a third party are also called aftermarket parts.

Reasons for Choosing Branded and Third-Party Parts

Third-party parts are less expensive than branded or OEM parts, so if cost is a significant factor that is a key point in choosing third-party or aftermarket parts. There is also likely to be more availability of aftermarket parts and a wider variety since there are hundreds of companies that manufacture these parts. Sometimes the quality can be just as good or greater as engineers tend to "reverse engineer" the parts and work the weaknesses out of these parts. However, the quality can vary greatly compared to branded parts and the consumer can be overwhelmed by the choices. It can be easier to choose the part if it is an OEM. OEM parts often have a manufacturer's warranty that may not be included with third-party parts.

New and Used Parts

When increased performance is desired, consumers generally are best served in choosing new parts. Used parts are best for older and light duty machines that are not intended as high performance ATVS.

Choosing Compatible Parts

Consumers can find guidelines in the owner's manual for engine part compatibility or should to consult with a mechanical guide for further information. The OEMs or parts manufactured by the Original Equipment Manufacturer of their vehicle are most likely to be compatible, but many aftermarket parts may be suitable depending on the intended performance demands of the ATV.

Shopping on eBay Motors for ATV Engine Parts

It is easy to shop for ATV engine parts on eBay Motors. The buyer goes to the eBay Motors site and enters a few key words in the search bar on any web page. The search is easiest if the terms entered in the search bar are as descriptive as possible, without being overly specific. For example, if the desired ATV engine part is an Arctic Cat clutch assembly, the buyer simply types in the search bar at the top of any page, "Arctic Cat clutch assembly". If he wants to see what filters are available, he types "ATV engine filters", for instance. When the buyer has completely described the part he is seeking, the search provides numerous applicable items offered by sellers from around the world.

Choosing a Seller

The consumer should carefully examine the images provided by the sellers. Read the information describing the condition and price of the items. Review the seller information, including rating and the feedback that buyers have posted about prior transactions. Sellers with a high rating, good feedback from previous buyers, and a large number of positive transactions offer confidence in purchasing.

Delivery Options

If the seller is nearby, the buyer may be able to pick up the part and have it sooner and cheaper than if it must be packed and shipped from a distance. The buyer compares the parts for condition, price, and quality, evaluates the information about the sellers, and chooses a seller and part on eBay Motors that best meet his needs.


ATV engine parts are a vital part of an ATV vehicle. Few parts are as essential to the operation of an ATV as the engine and its component parts. Replacing the engine parts maintains or increase the value of the vehicle. Owners of ATVs use their vehicles for leisure and entertainment and for tending to farm animals in agriculture and trees in forestry work. No matter what the purpose of the vehicle, owners who want to maintain and improve the performance of their vehicles need to find parts for their ATVs. After troubleshooting and assessing the specific parts needed, the consumer must decide whether to buy branded or third-party ATV engine parts. The next decision is whether the parts should be new or used. There are many options available to purchase these parts online or in brick and mortar stores, but the easiest and often most economical way to buy ATV engine parts is on eBay Motors.

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