Posted by Dave H (MI) on September 10, 2007 at 10:31:43 from (64.12.116.73):
In Reply to: Re: Farmall B - carb posted by Janicholson on September 10, 2007 at 08:41:24:
Hi Jim! Tried the idle adjustment again. It has no effect. I am pretty good on choke operation. The MTA likes a little choke in cool weather and a little more in the winter, none at all this time of year. The B started better than the MTA when we started with the carb. A more detailed description of current operation (as of today) follows:
On start. Tractor wants NO choke. Turn on the switch, crank the engine with little or no effect (used to start almost instantly). After many cranks some white smoke appears in the exhaust, it pops a couple of time, then it starts and runs as if it were choked (which it is not). It gradually gains power with lots of white smoke and then the smoke disappears and the engine smooths out.
On idle. After warming for a bit at about half throttle, I tried to idle it down and it does so pretty nicely. With the throttle all the way back there is a low idle with some black smoke. The idle gradually starts getting rough and the smoke gradually increases. Not belching out like a locomotive but it is there. The white smoke is worse on start.
Any of that make any sense? I don't know how to read smoke yet except for the bluish white burning oil smoke....that ain't it.
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