Mercury 3.5-40 HP Outboards Includes Electric Motors (1972-1989) Service Repair Manual : Haynes Group LTD : 9780892873951 : 0892873957 : 01 May 1989 : With a Haynes Manual, you can do it yourself, from simple maintenance to full repairs. Every Manual is based on a complete stripdown. Our authors and technicians work out the best methods to do a job and present this with the home mechanic in mind. Our Manuals have clear instructions and hundreds of photographs that show each step. Whether you're a beginner or a competent mechanic, you can save money with Haynes., Each Manual includes:, Clear and easy to follow page layout, Full procedures written from hands-on experience, Easy-to-follow photos, Faultfinding information, How to make special tools, Colour wiring diagrams (where available).Specific Models Covered:Merc 3.5, Merc 3.6, Merc 4 (40), Merc 4.5 (45), Merc 5, Merc 6, Merc 7.5 (75), Merc 8, Merc; 9.8 (110), Merc 9.9, Merc 15, Merc 18, Merc; 20 (200), Merc 25, Merc 30, Merc 40 (402)