Join Date: Feb 2019
Thanked 6 Times in 6 Posts
I don't mind blowing out paper filters once or twice before replacing them, kind of depends how it looks. If they're only lightly dirty, blow out and reinstall. If there's signs of vacuum collapse or the pleats are black and nasty, replace. For $20 every couple years it's not exactly a huge deal. If your local dealer wants outrageous prices for them certainly not difficult to find online, and air filters aren't exactly "right now" necessities. Your old one can last another few days to wait for shipping. I've found local stores tend to be fairly reasonable on prices when it comes to the common consumables- filters, brake pads, stuff like that they sell a lot of. It's the more obscure, less needed items they bang you on, which is not surprising. "Velocity Pricing".
My c50 came with a K&N filter installed as well as a new OEM filter still in the package. Once I finally got the bike running decently (bad fuel regulator), it still had kind of a dead spot off idle and tended to pop and snap on decel, classic sign of it running lean. Put the OEM air filter in and the popping almost entirely stopped and the throttle response was smoother and stronger off idle, so I'll +1 that if you want to run an exhaust and K&N, you really need a fuel controller. Exhaust only, you can ultimately get away without it.