Yamaha F225F Service Manual page 163

Checking the vapor shut-off valve ........................................... 5-39
Charging unit and component ....................................... 5-40
Checking the lighting coil (stator assembly) ............................ 5-40
Checking the Rectifier Regulator ............................................. 5-42
Ignition unit and component .......................................... 5-45
Checking the ignition spark ..................................................... 5-45
Checking the ignition coil ......................................................... 5-46
Checking the pulser coil .......................................................... 5-47
Checking the air temperature sensor ...................................... 5-48
Checking the air pressure sensor ............................................ 5-49
Checking the engine temperature sensor ............................... 5-50
Checking the thermoswitch ..................................................... 5-51
Checking the knock sensor ..................................................... 5-52
Checking the engine shut-off switch ........................................ 5-52
Starting unit and component ......................................... 5-53
Checking the starter relay ....................................................... 5-53
Checking the engine start switch and main switch .................. 5-53
Checking the engine start/stop button ..................................... 5-54
Checking Y-COP ..................................................................... 5-54
Starter motor ................................................................... 5-56
Removing the starter motor ..................................................... 5-58
Checking the starter motor operation ...................................... 5-58
Checking the magnet switch ................................................... 5-58
Checking the starter motor pinion ........................................... 5-58
Disassembling the starter motor .............................................. 5-59
Checking the armature (starter motor) .................................... 5-60
Checking the brush holder ...................................................... 5-61
Assembling the starter motor .................................................. 5-61
Installing the starter motor ....................................................... 5-63
6Y9 Multifunction Color Gauge sensor ......................... 5-63
Checking the water pressure sensor (optional) ....................... 5-63
Checking the speed sensor (optional) ..................................... 5-64
Outboard motor and Digital Electronic Control
connection ....................................................................... 5-65
Checking the extension wiring harness ................................... 5-65
Checking the main wiring harness .......................................... 5-65
PTT electrical system ..................................................... 5-66
Checking the PTT relay ........................................................... 5-66
Checking the PTT switch (bottom cowling) ............................. 5-68
Checking the trim sensor ......................................................... 5-69
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