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Originally Posted by RexB
crabjoe, I didn't look far back to see if you already had a thread about the exhaust smoke, but mine 'smokes a ton' too for a minute if I start it at 1900+ RPM. So before shutting it down I lower the idle to 1600; when starting next time it fires up quicker and hardly any smoke at all. The JD 'dozer is the same way.
Does erratic idle mean it races and slows down by itself? That might be the TPI in my truck but I don't know (yet) what would cause it in our tractors.
It doesn't get hot here so can't say.
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Before I shut down, I pull the throttle all the way back. As for erratic, when I start it, the idle jumps a few hundred rpms up and down until it settle. If I push the throttle up a bit to give it more fuel to try and settle it, it makes no difference. It's as if it can't get enough fuel until the motor heats up a bit.
BTW, if I cycle the glow plugs twice, it's just a puff of smoke and idle settles pretty quick.