When changing oil.... Remove filter and there is a spring loaded cartridge inside. Push and turn either way and remove for cleaning. Use brake cleaner then rinse and dry.
When re-installing.... make sure the spring goes in 1st then cartridge and twist to lock. The O-ring is reversible if you need to reverse it and use a dab of clean oil on the o ring prior to twisting it back on. Not to tight just snug then a1/4 turn like most filters.
This K&P filter will last the life of your bike. It filters better than throw away filters and flows up to 7 times faster as well.
2011 Cross Country. D&D's wrapped - VM1DR cams - PC5 - LLoyds high performance filter and ATS (Adjustable Timing system). Power output 115HP/115FTLBS tuned by KMC. Klock Werks flip shield - RF/PBR300x4 amp - Hertz HCX 6.5's - Victory 6X9 Magnum Lids - Victory XM - HMD Black Pull Backs with Victory performance grips. PIAA Led3 driving lights. accessories from Arlen ness - Witch Doctors - Noemtz Designs - Kuryakyn. Blacked out treatment powder Coat by PPC Stuart fl.