I have a 1989 Force 85HP that
I have a 1989 Force 85HP that just started running poorly. Last week I added a can of Seafoam and filled the tank with fresh gas and oil. Engine was purring along nicely while trolling about 4mph. After about an hour I noticed a slight change and the engine was running slightly rougher. About 30 min later I put the motor in neutral and it died - very unusual for this motor. It would restart but die as soon as I tried to put into fwd or rev. Spark appears good on all cyclinders but the compression on #3 is only 40 psi (105 psi on #1 and #2). Comments? Suggestions?
I have a 1989 Force 85HP that just started running poorly. Last week I added a can of Seafoam and filled the tank with fresh gas and oil. Engine was purring along nicely while trolling about 4mph. After about an hour I noticed a slight change and the engine was running slightly rougher. About 30 min later I put the motor in neutral and it died - very unusual for this motor. It would restart but die as soon as I tried to put into fwd or rev. Spark appears good on all cyclinders but the compression on #3 is only 40 psi (105 psi on #1 and #2). Comments? Suggestions?