- Joined
- Jul 20, 2014
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This came out of an old Mac 380 that I restored, I put new crank seals in but didn't touch the p&c. It shows 120psi on my compression gauge. I am struggling to tune it. I get a good fourstroke unloaded but it seems to not have much power in the cut. I pulled the plug and this is what it looks like......... Looks a little scary to me. The gray is a buildup almost like ash. I can't say that I've done much plug reading on a saw.... Always just tuned till it four strokes unloaded and clears up in the cut.