Re: Help please -- M Carb Adjust

Posted by CNKS on December 03, 2004 at 14:06:30 from (207.178.96.212):

In Reply to: Help please -- M Carb Adjust posted by billOH on December 03, 2004 at 13:41:03:

Not that different from your 8N. Open the main fuel screw 1.5-3 turns open. that's the one coming out of the bowl--looks like you have a green circle. Adjust the idle mixture 1-1.5 turns open --yellow. The red one is the idle speed-it just adjusts the throttle butterfly in the throttle body to the correct idle speed. With engine warm, and at WOT turn the main jet in until it runs rough and back it out (plus maybe 1/4-1/2 turn) until smooth. Out is rich, in is lean. With the throttle closed and the tractor at idle, turn the idle mixture in or out until smooth. IN is RICH, out is lean, the opposite of the main mixture. You may have to set both a couple of times. If you can't get it adjusted right, dissasemble, soak in carb cleaner, blow out with compressed air, and put a kit in it. The thingy at the bottom is a "metering nozzle clamp nut". Leave it alone if you don't have one in the kit, I'd probably leave it alone, anyway. The carb is very easy to overhaul.

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