Yamaha F75F - Page 84

Electrical system
Ignition unit and component........................................... 5-28
Checking the ignition spark ...................................................... 5-28
Checking the ignition coil
.......................................................... 5-28
Checking the spark plug cap
.................................................... 5-29
Checking the pulser coil
........................................................... 5-29
Checking the intake air temperature sensor
............................. 5-30
Checking the intake air pressure sensor
.................................. 5-31
Checking the thermo sensor
.................................................... 5-31
Checking the knock sensor
...................................................... 5-32
Checking the shift position switch
............................................ 5-32
Checking the engine shut-off switch
......................................... 5-33
Starting unit and component .......................................... 5-33
Checking the starter relay ........................................................ 5-33
Checking the engine start switch
.............................................. 5-33
Starter motor .................................................................... 5-35
Removing the starter motor...................................................... 5-36
Disassembling the starter motor
............................................... 5-36
Checking the starter motor pinion
............................................ 5-36
Checking the armature (starter motor)
..................................... 5-36
Checking the brush holder
....................................................... 5-37
Assembling the starter motor
................................................... 5-38
Installing the starter motor
........................................................ 5-40
PTT system ....................................................................... 5-40
Checking the PTT relay............................................................ 5-40
Checking the PTT switch (on bottom cowling) ......................... 5-41
Checking the trim sensor
.......................................................... 5-42
Checking the tilt limiter (remote control model) ........................ 5-42