I know what a tach is, but I've never seen one that's used for saws. I'm thinking about modding the muffler on a few of my saws, and I'd rather adjust the carb using a tach than by ear. I have a FLUKE clamp on amp meter at work that does frequency. I've used it on other small engines by running the spark plug wire through it. Should that work for my saw as well?
Also, I noticed that my spark plug cable has a lot of wear on it. It looks like it's been sitting between the back cover (Stihl 036) and the top cover for a while and the vibration of the covers has worn a lot on the spark plug cable. How big of a pain is it to change the cable? Never had one out of a saw.