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 - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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