Motorcycle filters are used for filtering the lubricant, fuel and air getting inside an engine. Therefore, they protect it from clogging and premature failure.

Types of motorcycle filters

• Fuel. They are used for cleaning the fuel. They prevent contaminants from getting into the fuel system. They should be replaced once a season.
• Air. They filter the air which comes into the engine. The service life of the parts with a paper filtering element is usually specified in the vehicle manual. They might last for 5,000 as well as for 24,000 km. As a rule, there are no specified replacement intervals for models with a foam filtering media. However, these components are checked at each scheduled maintenance of the bike and have to be replaced if necessary. Racing motorcycles are often fitted with sports air filters. They produce a positive effect on engine power output due to low air resistance.
• Oil. They filter the oil circulating in the engine lubrication system. Parts which can retain only large particles do not have any defined service life. The spares that ensure fine purification need replacement once every 8,000 – 15,000 km.

Malfunctions: their causes and symptoms

• Clogging. It is an inevitable consequence of long-term use of the component. It might result in a decrease in the engine power output and its difficult start, higher fuel consumption. After a few hours of continuous operation, unusual sounds may be heard coming from the engine.
• Torn filtering material. Unusual noise heard when the engine is running can indicate this problem. Among the possible causes is slipshod maintenance.
• Cracked housing. Depending on the type of damaged motorcycle component, it might be accompanied by oil or fuel leakage. Cracking can be caused by a stone hitting the part or improper installation.

Tips on how to maintain and replace motorcycle filters

• Spares should be replaced and serviced only according to the motorcycle manufacturer's instructions. Besides, it is very important to protect your eyes and hands from technical fluids.
• You should use special chemicals for rinsing washable parts. It is not recommended to use petrol or any other aggressive substances.
• It is important to make sure that the filtering media fits the housing as tightly as possible. Gaps reduce the efficiency of filtration.
• Gaskets have to be replaced together with these motorcycle parts. This way, it will be possible to keep the assembly sealed. Some gaskets are sold together with filters and others can be bought separately.

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