Operation54EMU28062Shallow waterEMU32871Power trim and tilt modelsThe outboard motor can be tilted up partiallyto allow operation in shallow water.NOTICEECM01490 If the engine speed is suddenly in-creased when the outboard motor is par-tially tilted up, the power trim and tilt unitcould be damaged. Do not tilt the outboard motor up so thatthe cooling water inlet on the lower unitis above the surface of the water whensetting up for and cruising in shallowwater. Otherwise severe damage fromoverheating can result.EMU32922Procedure for power trim and tilt models1. Place the remote control lever in neutral.2. Slightly tilt the outboard motor up to thedesired position using the power trim andtilt switch. WARNING! Using the powertrim and tilt switch on the bottomcowling while the boat is moving orengine is on could increase the risk offalling overboard and could distractthe operator, increasing the risk ofcollision with another boat or an ob-stacle. [EWM01850]3. To return the outboard motor to the nor-mal running position, press the powertrim and tilt switch and slowly tilt the out-board motor down.EMU28195Cruising in other conditionsCruising in salt waterAfter operating in salt water, flush the coolingwater passages with fresh water to preventthem from becoming clogged. Also rinse theoutside of the outboard motor with fresh wa-ter.Cruising in muddy, turbid, or acidic waterYamaha strongly recommends that you usethe optional chromium-plated water pump kit(see page 13) if you use the outboard motor inacidic water or water with a lot of sediment init, such as muddy or turbid (cloudy) water. Af-ter operating in such water, flush the coolingpassages with fresh water to prevent corro-sion. Also rinse the outside of the outboardmotor with fresh water.NZMU04588