DR650 and KLR650: Stock Air Filters Are No Good

In the spring of 1990 I purchased my first KL650A, a 1989 model with less than 500 miles on the speedometer. The first thing I did was execute a complete set-up and service which exposed so many defects that I almost sold the bike.

What I did about the problems I encountered have been documented in Dual Sport News starting in the late 1990’s, as well as on 2 websites:
www.multisurfacemotorcycling.com (now defunct) and www.topgunmotorcycles.com.

The first thing I did was to check the valves resulting in the discovery of a stripped out and split 6mm x 1.0 right front valve cover bolt hole. Kawasaki reluctantly warrantied the head because the damage wasn’t repairable. Warning: after