NEWS

The KTM125 air filter element, green pleated paper media treated with oil, clamped in a black plastic frame, with clips and locating tabs on the sides for the air cleaner box. The pleats multiply the media area, catching finer dust than foam and more than a flat sheet, without choking the air. Paper is not washed, water soaks the fibers and strips the oil film, so a dirty element is swapped for a new one. Replace it when dust shows through the pleat gaps at the light, the color goes dark, or the pleats squash, and machines in the same family are checked against the old part.

The XT149 air filter is a two piece set, a pleated paper element plus a foam prefilter. This article covers what each layer catches, which one can be washed, and when to replace the set.

The GCV160 air filter is a square green paper element for GCV160 and GCV135 class engines. This article shows how the paper color tells when to replace it, and what to check before fitting a similar model.

The GX110 air filter is a paper element, not foam, so water washing does not work. This article covers how to tell when to replace it, and what to check before fitting an oval filter to a GX120 or a bigger engine.