Yamaha 25 Owner's Manual

Also see for 25: Owner's manual

Contents

Table of contentsTilt support bar ................................ 26Cowling lock lever(s) (turn type)...... 26Installation ....................................... 27Installation ..................................... 27Mounting the outboard motor .......... 27Clamping the outboard motor ......... 28Operation ......................................... 30First-time operation ....................... 30Breaking in engine .......................... 30Getting to know your boat ............... 30Checks before starting engine ...... 30Fuel level......................................... 31Remove cowling.............................. 31Fuel system..................................... 31Controls........................................... 31Engine shut-off cord (lanyard)......... 32Oil.................................................... 32Engine ............................................. 32Install cowling.................................. 32Battery............................................. 33Filling fuel and engine oil............... 33Filling fuel for portable tank ............. 33Gasoline and oil mixing (100:1) ...... 34Operating engine........................... 35Sending fuel (portable tank) ............ 35Starting engine ................................ 36Checks after starting engine ......... 43Cooling water .................................. 43Warming up engine ....................... 43Choke start models ......................... 43Checks after engine warm-up ....... 43Shifting ............................................ 43Stop switches .................................. 43Shifting .......................................... 43Stopping boat ................................ 45Stopping engine ............................ 45Procedure ....................................... 45Trimming outboard motor.............. 46Adjusting trim angle for manual tiltmodels .......................................... 47Adjusting boat trim .......................... 47Tilting up and down ....................... 48Procedure for tilting up (manual tiltmodels) ......................................... 49Procedure for tilting down (manualtilt models)..................................... 50Shallow water................................ 50Cruising in shallow water (manualtilt models)..................................... 50Cruising in other conditions........... 52Maintenance .................................... 53Transporting and storing outboardmotor ........................................... 53Clamp screw mounting models ....... 53Storing outboard motor ................... 53Procedure........................................ 54Lubrication....................................... 55Cleaning and anticorrosionmeasures ...................................... 55Cleaning the outboard motor........... 55Checking painted surface ofmotor............................................. 55Periodic maintenance ................... 55Replacement parts .......................... 56Maintenance interval guidelines ...... 56Maintenance chart 1........................ 57Maintenance chart 2........................ 59Greasing.......................................... 60Cleaning and adjusting sparkplug ............................................... 60Checking fuel filter........................... 61Inspecting idling speed.................... 61Checking wiring and connectors ..... 62Checking propeller .......................... 62Removing propeller ......................... 63Installing propeller ........................... 63Changing gear oil ............................ 63Cleaning fuel tank ........................... 65Inspecting and replacinganode(s)........................................ 65Checking battery (for electric startmodels) ......................................... 66Connecting the battery .................... 66Disconnecting the battery................ 67Trouble Recovery............................ 68Troubleshooting ............................ 68Temporary action in emergency ... 71Impact damage ............................... 71Replacing fuse ................................ 71Starter will not operate .................... 72