[Early_S_Man]

Ron,

After sitting for that long, large chunks of carbon may have come loose and be stuck under valve head of cyls #1, #2 and #3. There's no reason to get worried, yet!

Get a couple of 16 oz. cans of Berryman's B-12 Chemtool and pour 4 oz. down stacks for cylinders 1-3 while spinning the engine over, after pulling the 3-pin plug from CDI-unit. Let engine sit overnight, and repeat treatment again ... then do another compression check. Be sure throttle is wide open and all 6 spark plugs are out, and freshly-charged battery before compression test.