That's the slight niggle I have with ours Luke. I am taking on board Ian's (Senators) advice and have ordered some outdrive oil, so when she is out for a couple of days next weekend, I am going to check that out just incase, even though supposedly it was all done in July. I know the engine oil is pretty clean, so I'm sure that was changed, but the air filters look pretty dirty so I doubt a proper service was done.
Glad you are learning techie stuff, and I think you are ahead of me on these engines now, but things like changing impellors and fuel filters are must to know how to do if venturing to sea IMHO.
Just out of interest, when the fuel filters were changed, was it an easy operation to bleed the system? I know how it should be done in theory, but I just wondered how the mechanic did it in practice?