K&N Motorcycle Air Filter: Clamp On Pod Filters (4 Pack) Chrome Top with 54mm Flange Fits older Motorcycle Models CB, KZ, GS, GPZ, XS Pod Filters RC-0984 , Black
Air Filters for Yamaha XS650 for sale | eBay
Air Filter - Pod - 54mm | Yamaha Motorcycle Parts | Mikes XS
Yamaha High Flow Replacement Air Filter XS650 1976-1979 Street Motorcycle Part# 771152