HOW TO: DIY Compact Air Filter

[YetiWoodz]

How to modify your stock air filter to make it more compact and increase air flow using basic tools and fine wire mesh.

 

[Chainlube]

All I have is straight screwdrivers, is that okay?

 

[Chainlube]

Yeti, I think you should have some other filter medium in between the two screens. Fine dust can still pass through those.

 

[Frogslayer]

Good for winter I bet though.

 

[YetiWoodz]

Yeti, I think you should have some other filter medium in between the two screens. Fine dust can still pass through those.

Eh, after watching this video by Hughes Motorized, I think it doesn't really matter.
Video

 

[YetiWoodz]

If I do decide to filter it more, is there some really thin stuff I can use that will filter out the dust but doesn't lose effectiveness when it gets covered in some oil spitting out the carb and doesn't noticeably restrict the airflow?

 

[Chainlube]

If I do decide to filter it more, is there some really thin stuff I can use that will filter out the dust but doesn't lose effectiveness when it gets covered in some oil spitting out the carb and doesn't noticeably restrict the airflow?

Steal a pair of mums pantyhose and a couple layers should do it.

 

[Frogslayer]

The foam filter that comes with the engine works great when oiled up.

 

[YetiWoodz]

The foam filter that comes with the engine works great when oiled up.

Why oiled? And what kind of oil

 

[GreasyChris]

I havent used an air filter in over a year. I use a velocity stack on my carb and thats it. I also don't ride in the rain or in dusty conditions or any of that and haven't had any issues. I also use a sleeved jug and inspect the internals on a regular basis.
K&N makes a spray on oil for there filters or you can just use wd-40. Depending on how much air the filter flows you may have to rejet the carb as well