Removing The Starter Motor; Checking The Starter Motor Operation; Checking The Magnet Switch; Checking The Starter Motor Pinion - Yamaha F225F Service Manual

Removing the starter motor

Before removing the starter motor, make
sure to disconnect the negative battery
terminal.
1. Remove the intake manifold (STBD).
2. Remove the starter motor from the power
unit. See "Removing the starter motor"
(7-31).

Checking the starter motor operation

1. Connect the positive battery cable a to
the magnet switch terminal a, and then
connect the negative battery cable b to
the starter motor body.
2. Connect the lead c to the magnet switch
terminal b.
3. Connect the lead c to the positive
battery terminal, and then check the
starter motor operation. WARNING! Do
not touch the starter motor pinion.
a
c
b
c
TIP:
• Check the starter motor operation for a few
seconds.
• If the starter motor is disassembled for
maintenance, make sure to check the oper-
ation again after assembling it.
4. Disconnect the negative and positive
battery cables from the battery terminals.
a
b
b
a

Checking the magnet switch

1. Connect the tester probes to the magnet
switch terminals a and b.
2. Connect the negative battery cable a
to the starter motor body.
3. Connect the lead b to the magnet switch
terminal c.
4. Connect the positive battery cable c to
the starter motor lead b, and then check
the magnet switch continuity between the
terminals a and b. Replace if out of
specification. NOTICE: Do not connect
the lead to the battery for more than 1
second.
a
b
a
b
c
c
b
Magnet switch terminal
Battery lead
a
Connect
Disconnect
TIP:
The starter motor pinion should be pushed
out while the magnet switch is on.

Checking the starter motor pinion

Before checking the starter motor pinion,
make sure to disconnect the battery
cables.
1. Check the pinion teeth. Replace the pin-
ion if cracked or worn.
Starter motor
c
a
b
5-58
0
1
2
3
4
5
6
7
8
9
10
A