Which jet do you mean? The main jet screw is turned in at full throttle until it stutters, then out until smooth. If it does nothing it is still plugged. Same thing for the idle jet at 600 rpm or so. I have never had the desire to turn out the main jet until it smokes, you want a lean condition, not rich, that is why you turn it IN first and then out until it is smooth, no more than 1/4-1/2 turn after that. This is all in the Operators Manual, which you obviously need. One other thing. The M carb has the choke lever and rod on the outside of the carb, the SM on the inside. If you have an SM carb, forget the main jet adjustment and turn it out 4-5 turns. The SM idle jet is adjusted the same as the M jet.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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