Are the mixture meters the problem or the probe? How long will the meters last? and how long will the probes last? Thanks Larry H.
------------------------------ Larry, The mixture meter is a solid-state panel-mounted unit and should work for several thousand hours. The probe screws into a bung in the exhaust pipe. The bung is welded into the exhaust pipe; use stainless or 4130 bung depending on your pipe. Automotive applications for this same part number get about 1,000 hours before wearout using unleaded fuel. The lead in 100LL will gradually foul the sensor in about 100 hours rendering it inoperative. There is no practical way to clean the fouled sensor. At about $20 each, it's not a big deal to replace it. Better yet, run unleaded fuel and get a 1,000 hours operation. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA smw...@md.metrocast.net
