Mercury Mariner Outboard 30 40 HP 2cyl 2-stroke In this manual you will find all the repair and service procedures you need to solve the problem with your Mercury Mariner ouboard, you can also find information about maintenance schedule to avoid further damage. Models covered: 30/30 Marathon/30 Sea Pro/40/40 Marathon/40 Sea Pro Our FSM manual contains: Important information Electrical Fuel system Powerhead Mid-section Lower unit Attachments/control linkage Manual starter You can find similar service manuals in the link below: