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Yamaha 55DEHD - Periodic check and adjustment

Yamaha 55DEHD
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6885J11
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Periodic check and adjustment
Maintenance interval chart .......................................................................... 3-1
Top cowling .................................................................................................. 3-2
Checking the top cowling ......................................................................... 3-2
Fuel system .................................................................................................. 3-2
Checking the fuel joint and fuel hose (fuel tank-to-carburetor) ............... 3-2
Checking the fuel filter ............................................................................. 3-3
Power unit ..................................................................................................... 3-3
Checking the spark plug .......................................................................... 3-3
Checking the thermostat ......................................................................... 3-3
Checking the cooling water passage ....................................................... 3-4
Control system ............................................................................................. 3-5
Synchronizing the carburetor ................................................................... 3-5
Checking the control link position ............................................................ 3-6
Adjusting the throttle cable ...................................................................... 3-7
Checking the engine idle speed .............................................................. 3-8
Checking the ignition timing .................................................................... 3-9
Checking the timing plate ...................................................................... 3-10
Checking the ignition timing stopper ..................................................... 3-11
Checking the gear shift operation .......................................................... 3-13
Checking the neutral switch operation (EHD) ....................................... 3-14
Checking the choke solenoid position (ED, ET) .................................... 3-14
Bracket ........................................................................................................ 3-15
Checking the PTT operation (ET) .......................................................... 3-15
Checking the PTT fluid level (ET) .......................................................... 3-15
Checking the tilt operation (EHD, ED) ................................................... 3-16
Checking the tilt pin ............................................................................... 3-17
Lower unit ................................................................................................... 3-17
Checking the gear oil level .................................................................... 3-17
Changing the gear oil ............................................................................ 3-17
Checking the lower unit for air leakage ................................................. 3-18
Checking the propeller ........................................................................... 3-19
General ........................................................................................................ 3-19
Checking the anode ............................................................................... 3-19
Checking the battery ............................................................................. 3-19
Lubricating the outboard motor ............................................................. 3-20
CHK
ADJ
6885J11_03 07.9.26 10:24 Page 1

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