Do an internet search. I managed to find my manual on-line. All I had to do was print it out that was for a volvo. Try the Volvo website. Another possibility is http://www.marineengine.com/manuals/volvo/
Had a Fairline Mirage with these engines in., Still have the manuals here.., One from Clymer and one from............ cant remember... but both cover the 130D's and 280 legs Were are you.. postage and a drink and they are all yours.