Motocross Maintenance – Air Filter Cleaning

November 15, 2009

By system

Any motocross racer will tell you that results depend a great deal on not just the capability of the rider, but the dependability of the bike, which is why proper motocross maintenance is important for you to start getting those much deserved results.

Among one of the most critical aspects of motocross maintenance is cleaning the air filter on the bike. The air filter is the number one protection for your engine and without it, your bike would be sucking air and particles, directly through to the engine, this may include dust, or general debris. Your air filter basically forms a bubble, not allowing any debris or dust to pass through and can even soak up water if you find yourself in such a situation, so it’s always wise to keep it spotless.

Motocross Maintenance is ignored by many people, in particular cleaning the air filter on a motocross bike as it is generally a nasty job.

This is a fairly simple way to clean a filter,an basic part of motocross maintenance, although other riders prefer to use various methods. You will need to detach the seat from your machine, which will give you entry to the airbox. Remove the filter and put it in a bucket. Once in the bucket you can either fill it with hot soapy water, or filter cleaner (make sure you get yourself some latex gloves). Filter cleaner is the wiser option, but some prefer to use hot and soapy water, mainly because it’s cheaper!

This can be a time consuming part of motocross maintenance, but don’t get despondent, it has to be done! Make sure you get rid of all dirt and oil particles before washing throughout with cold pure water, and let it dry COMPLETELY. This is essential, if you install a wet filter to a machine, the suction from the engine may drag the water particles through causing top and bottom end damage.

Once the filter is dried out, you have two options; spray on air filter oil or normal oil. Spray on oil is the simpler choice, but make sure you coat the filter correctly, as sometimes its easy to miss spots. With the usual oil, I tend to wear latex gloves and put the filter into a plastic bag with some oil, then slowly knead it into the filter. Which ever way you coat your filter with oil, always make sure you let the filter to dry for a time, as additional oil could block jets in your carburettor, causing engine failure.

There; a fairly basic job and your ready to go, the air filter section of motocross maintenance is complete!

Crucial motocross maintenance Points:

Some riders prefer to use petrol. While this is an excellent way to get rid of dirt and grime quickly, the chemicals in petrol can break up the seams of glue, which can allow dirt particles in and therefore leave your engine exposed.

A few riders like to use a coat of grease to seal the filter to the airbox. This is in fact something I do myself, as I take no chances. You can use grease made for this exact purpose, or any all purpose grease, just apply a small amount around the rim of the filter and it should create a perfect seal.

Oiling filters is a messy job, but a well worth while part of motocross maintenance. Its clever to try and do a bulk load of filters in one go, once they are done, wrap them up in plastic bags, so you can change the one fitted to your motocross bike promptly, if you hit an extremely muddy or dusty track.

*Do not attempt to start or ride your motocross bike without oiling your air filter. Without oiling your filter, you have not completed the above steps of motocross maintenance. The oil acts like a spiders web, catching all particles that may harm your engine, by running your bike without oil, you are running the risk of damaging your engine.

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