Take the opportunity to replace all your old air filters with Twinair.
TwinAir Air filters. TwinAir is the world's largest manufacturer of air filters. Used by more pro teams than all other manufacturers combined.
Designed to easily replace the original air filter. Twinair air filters are double layered to effectively prevent dirt from entering the carburetor and to create maximum power output.
Air filters should be changed regularly! Therefore, it is easier if you have a few spares available.
Supplied only with the rubber sealing ring if necessary according to the OEM filter basket.
Be sure to purchase filter oil!