NO fuel mixture adjustments on new small engines for a few years now. This is why you need a set of 61 through 80 drill bits and a pin vise to hold them. For some years I have used these drill bit and also the lower end of my 1 through 60 set to adjust the carbs main jet on the flat twin Brigg flat head engines. About two weeks ago a guy brought me a 15.5 HP Tec. engine with the PLASTIC FANTASTIC CARB ON IT. The engine was lean on both the high speed and idle mixture. Drilled out the plastic, YES plastic high speed jet and I used a number 75 drill to enlarge the brass idle jet. Engine ran like a dream, which is ODD for a Tec. engine when she left. It seams as these newer engine are set-up so lean from the factory that when they get a little age/wear on them they need richening up. The only way to do it is with a drill.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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