Posted by John T on February 10, 2013 at 19:17:46 from (71.52.99.130):
In Reply to: JD misfiring posted by Ron Barkdull on February 10, 2013 at 16:52:43:
Not hearing it myself its hard to tell you how to get it running correctly, heck maybe it already is??? At slow idle it may not sound to the untrained ear to be running correctly when it actually is!!!!!!!!!!!! Due to a single carb serving BOTH cylinders and their manifold and their firing cycle, at slow idle the cylinders may not be getting equal gas charges. However if properly tuned with a good mag and carb and timing they certainly can run smooth and "correctly"
The pops your ear is capable of hearing (Fletcher Munson hearinG response time curves) are the summation of BOTH cylinders firings, NOT THE LEFT THEN THE RIGHT CYLINDER EACH FIRING...You dont hear pop, pop, pause pause pause when theres the 540 coast cycle. My late friend Physicist Duane Larson had a detailed technical explanation of all that
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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