I'm new to this so I apologise in advance for any ignorance, etc.
I have taken delivery of a 16' fibreglass ski boat with a 115hp E'rude on the back. The model number is 115983S and it hasn't been run for at least 6 years. I would like to get my hands dirty and rebuild the engine being fairly mechanical minded, wanting it done properly and not caring how long it will take. My question is, what assessments/testing should I do on the engine before I start, as I do not want to find out I am throwing away my hard earned cash half way through the rebuild. Or being such an old engine and not knowing the history of it, do I look at purchasing a newer good second hand unit. Any help is greatly appreciated.