Thank you very much for the reply. I do not have excess oil as far as I can tell. And it is about time for an oil change anyway. Not sure what you mean by smoke, I guess when this tractor runs well I don't even notice exhaust. I guess what I am seeing is excess smoke.
I gave the injector test a shot just now. By loosening the fuel line, two injectors caused a major change in the idle, and basically two did not. With the two that did not, one may have been a slight change in the idle. But nothing like the two that did change the idle. For the two that changed the idle, there was almost no fuel leaking and the idle changed a lot. Just a small turn away from snug caused a major change in idle. For the two that I loosened that did not change the idle, there was fuel squirting pretty well.
How can two injectors go bad all of a sudden?
Thanks again for your help, and also everyone else that responded so far.
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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