Don't know the engine, but general principles are :
1. Change oil and filter
2. Check antifrez in freshwater circuit
3. fill raw water side with anti freeze mix
4. Remove raw water pump impeller
5. Block up air intake
What engine is it? ie, a 10306.
Previous owner of my boat, which has a 10306 had left among the paperwork a schedule for this purpose, which I could type to you through the pm .
Incidently I am still trying after 6mths to find out what the horse power is for my parama 10306, 3 cyl, anyone happen to know?
That would be brilliant. There are various things written on the engine such as AR750, Type KD 30244J and ser. no. 38939V. The brokers details described it as a M30 rated at 29 hp.