It is common practice in many amateur-built engine installations, from Rotaxes to Lycomings, to use K&N filters. They do a wonderful job of filtering the air, and they are reusable. However, they only are able to perform correctly if they are properly cared for. They should be cleaned annually at a minimum with K&N filter cleaner and then lightly oiled with K&N filter oil. Without the oil, which leaves a slight pink color on the filter, they will not filter properly. The one in the photo above was not oiled.
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Firewall Forward: Electrical Systems, Part 1
Don’t be intimidated by the prospect of wiring—plenty of homebuilders didn’t know how to do it when they started their projects. Get yourself the right tools, then jump in and start learning. Dave Prizio outlines the basics.
A Sign of the Zodiac (Part 7)
It’s about the journey, not the destination, as Rick Lindstrom’s homebuilt Zodiac 601 XL is ferried by friends from Florida to its new home in Cloverdale, California.