SEA LION,,,,,
I HAVE THE SAME ENGINE IN A 90 HORSE.... AND AM IN THE SAME BOAT (PUN INTENDED) AS YOU... THE MAN I BOUGHT IT FROM TOLD ME IT HAS ALWAYS BEEN COLD BLOODED.. AM GONNA CHANGE THE PLUGS AND SEE WHATS WHAT...ALSO THINK THINK OIL TO GAS RATIO MAY BE TOO HIGH..BUT IM NOT SURE TO CHECK THAT ONE...MAYBE SOMEONE WILL READ THIS AND KNOW THE ANSWER..THEIR IS A LOT OF GUYS ON HERE WHO REALLY KNOW THEIR STUFF...CROSS YOUR FINGERS...HARRY