Boat Repair Questions? Ask a Marine Mechanic for Answers ASAP
Hi, I'm Jeremy I'll help with your quesiton.
The answer is it depends, Has it run on good oil it's whole life, never overheated and is it all stock?If the answer to those is yes then no there's no gain in rebuilding it.It would not necessarily gain you anything.The best maintenance you should do at this point would be to rebuild the carburetors and replace all the oil lines.The most common reason for a 2 stroke to blow is from a oil line that became brittle and broke so the engine starved for oil and seized.I hope that helps.
It's a gamble only because it's 12 soon to be 13 years old.If it runs ok I would have someone do a compression test on the engine. That will tell you if the engine mechanically is in good condition for the most part.Then I would still highly recommend rebuilding the carbs and replacing the oil lines.If you have a shop do this it should cost around $250 and that would be the most important thing you could do to preserve it's condition.