I purchased a boat with a 1999 90 hp Johnson and on one side with no 1 cylinder the compression is 120 on both and on opposite side its reading 100 on the top cylinder and 85 on the bottom, it also looks like that head has been removed and reinstalled, there silicone around edges, but none on the 120 side, will this be a major issue, boat has been sitting awhile and needs carbs cleaned
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