klr650 jetting

[Stuart Heaslet]

At 04:04 PM 10/17/00 -0700, Mark Weaver wrote:

>probably depends what you want to do with it. i end up cleaning my foam air >filter pretty frequently, probably 10-12 times in the last 10 months. every >time it was pretty dirty (i ride alot, and it's dusty in california in the >winter). from what i understand, the k & n filter is a pain to clean, so i >never considered one. i did get a jet kit tho, and i'm quite happy with it.

The K&N filter works well for me, though I carry a cleaning kit that allows me to wash the thing and dry it overnight or in the sun for an hour or two. It has to be absolutely dry before wicking any oil on it, and I seat it using grease on the rubber seals. It's bad news if you put oil on a slightly wet K&N. I found the biggest source of dust was delivered into the airbox opening on the left rear of the bike next to the (removed) California emissions canister. Filter cleaning is reduced when a foam filter is wedged in this opening, and Uni-filters are installed on the righthand airbox cover. I managed to fit six Uni-filters on the cover and stuff the airbox on the left side of the bike, with no apparent loss of power. In addition, this treatment seems to reduce the amount of water spray into the airbox. After a day of drizzly rain on dirt roads, the K&N is dry as a bone, and the inside of the box seems cleaner. I know this because I took the airbox cover off to look when the bike choked to a stop a couple of times in misty-muddy conditions (the actual problem was a wet mud-plugged carb vent hose that drained itself after a few minutes). Stuart