Decided to run 87 Octane E10 in my 1983 Johnson 90 hp V4. First thing that happened was a couple of days later, an old plug made of JB weld in the bottom of my tank softened up and 15 gallons drained to the ground. Yea that hurt, ha ha. Anyhow, after running a few hours, I pulled the plugs and checked things out. The plugs were completely clean. Not grayish like overly lean but almost like new looking. Never experience this before. Usually they are a golden brown with a little carbon. They even had some greenish residue on the grounding strap that I hadn't seen before. I scoped the cylinders and they were completely clean except for a generous amount of 2 stroke oil. Looked like I had decarbonized it. I checked compression and one cylinder was 150 psi and the other three were in the 140s. The second highest was cylinder number 3 at 148 which has a scored piston on the bypass side. Using a Mac tools gage. Anyone else ever experienced this. I finally got rid of the hesitation this motor has always had at mid-range and it runs pretty much perfect now even though it was used and abused by a commercial fisherman in the gulf of Mexico for quite a few years, ha ha. Now with that said, I poured some love into this thing over the past year. I like polishing turds if you know what I mean.
