b717doc, you can cut down on those explosions in your pipes during deceleration by adjust the mix a bit richer and that actually will help the longevity. An air cooled engine should always run a bit richer since it aids in cooling the motor and a cooler motors last longer. Just my two cents...

A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)