"hi jack, i have a 1969 westerly nomad 22 with md1 that i run on straIght biodiesel (much better for many reasons).
things to do:
charge up battery
check wiring/connections between battery and starter especially.
change crankcase oil (use synthetic)
clean oil strainer screen
clean air cleaner
adjust valves (all two of them)
drain fuel tank, rinse and refill
remove fuel filters and inspect probably pretty dirty
blow out all fuel lines with compressed air
remove injector, have it inspected, adjusted etc by a professional.
lubricate all control cables, prop shaft gland nut etc.
this may seem like a lot but it beats farting around with the diesel when you're tired and it's dark and you want to head in. if you use biodiesel instead of petrol AND wash the whole cabin down with soap and water you will no longer endure the horrible smell of petrol diesel in the cabin, on your hands etc. it will be a pleasure to work on the motor! biodiesel also burns much cleaner and has more lubricity so the engine will be much happier.
you can contact me at [email protected]
(""). good luck!