Mercury Mariner Outboards 2.2 / 2.5 / 3.0 Service Shop Manual, Page 9Get this manual
Tilt Angle Adjustment The angle of the motor can be adjusted by changing the position of the tilt angle adjustment pin in the holes provided in the clamp brackets
Adjustments and Maintenance
DO NOT attempt to remove or install cowl while engine is running
AWARNING
Cowl Removal and Installation
MODEL 2.2 Remove spark plug access coverRemove 10 screws to remove cowlingReplace 10 screws and access cover to reinstall cowl
aTilt Angle Adjustment Pin
Cowl RemovalInstallation (Model 2.2) MODELS 2.5-3.0 (1990) Remove gas tank cap and retainerfrom tank Push in on inner portion of cowl latches to disengage latches and lift top cowl offTo replace cowl, position cowl over engine and push down until latches engageReplace gas tank cap and tightened securely