how often service inboard
Every 100 hours of engine time, (either inboard or outboard), the engine should be serviced. We recommend that this is the absolute minimum. Winter Service. At the end of the season your engine should be winterized, this is where the fuel is drained and the engine is inhibited, ready for use the following season.very 100 hours of engine time, (either inboard or outboard), the engine should be serviced. We recommend that this is the absolute minimum. Winter Service. At the end of the season your engine should be winterized, this is where the fuel is drained and the engine is inhibited, ready for use the following season.