Have a hunt round and see if you can find spares, manuals
, specifications for the engine. I you cannot then it may be a good idea to get some quotes for buying
and fitting a new engine and to factor this into the price
Having said that if you do buy the boat and the engine/gearbox is working well I strongly recommend treating it like your firstborn, keeping it clean, frequent filter and oil
changes, primary filters on the fuel tank
, not running at full power, that sort of thing.