Quote:
Originally Posted by Bobcat
Flygirl ... good link that Dwight gave you , but be advised that it applies only if you do WOT runs and then shut off clean . However , it gives you enough that you can get in the ballpark and is a great primer on plug reading in general .
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Yes but, generally speaking, all the same things apply. Toasty tan is the optimum color, very slight soot on the base ring, and the annealing midway on the ground strap. I bought Don Gould's tuning guide
here and it really helped me learn a lot about how all this works. Spark plugs are a periscope into an engine and if you learn this stuff and the basics of how a carb works, you can really get your engine purring.