Issue: When performing regular maintenance on my 2008 KLR650 I noticed that the stock air filter was due for a cleaning or replacement. I figured I’d take the opportunity to try out the K&N KA-6589 air filter to see how it compared to the stock foam filter. I’ve heard mixed reviews on the K&N with respect to its off-road performance. It seems that the K&N can let through more particles and dust than the foam/oil filter (not a good thing). For this reason I won’t be making a permanent change to the K&N but I don’t have any off-road rides planned for the next month so I’ll give it a try.
Installation: (video review below)
- You’ll need to remove the rear side panel on the right hand side of your KLR.
- Unscrew and remove the cover from the air box.
- Remover the existing air filter and examine the filter and air box for dirt etc… Always good to know if you’re collecting dust/particles or not.
- Clean the air box.
- Use a knife to remove the small tab on the K&N filter, it’s not needed for the KLR650
- Use the sealing grease provide with the K&N KA-6589 air filter to create a seal around the base of the filter.
- Place the air filter in the air box then install the filter’s top plate and re-secure the wing-nut. *Do not over tighten the wing-nut, snug is all you need.*
- Reinstall the air box cover and the rear panel. You’re back in business.
Notes: Installation was easy and took only minutes, not much more to say. I haven’t noticed a change in performance or gas mileage at this point but I will update you if I do. I’ll continue to use the K&N KA-6589 for now but I’ll be switching back to the foam/oil filter prior to my next off road trip.
