Re: Engine tune-up

Posted by GordoSD on August 08, 2008 at 19:14:09 from (66.115.200.140):

In Reply to: Engine tune-up posted by wallacedw on August 08, 2008 at 14:26:32:

Some basic carb info here. The float, rides on the fuel in the bowl. When you are driving the tractor the needle seat will almost never stick closed. Vibration will open it.

When you park and shut down, the needle may not seat/close. causing leakage. You won't get a rich mixture running from a "sticky needle". You would get zero fuel and starvation.

If the float is set too "high" that is it shuts off late, then you get fuel overflow and leak while running. Too high fuel level in carb doesn't mean too rich. That is determined by the load screw seting to the discharge needle. Float set too low, and then you can have a lean situation.

You need to tell us why you think the carb "float is sticking". Better yet, just send the carb to "rusty farmall" and make sure it is
("100% balls on calibrated,It's an industry term") (from My Cousin Vinnie).

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