Yamaha YFM660RN Service Manual page 295

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3.Starter motor
Connect the battery positive terminal 1
and starter motor cable 2 using a jumper
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lead 3
.
Check the operation of the starter motor.
4.Starter relay
Remove the starter relay from the wire har-
ness.
Connect the pocket tester (Ω × 1) and the
battery (12 V) to the starter relay terminals.
Battery (+) terminal →
Yellow/Black terminal 1
Battery (–) terminal →
Blue/Black terminal 2
Tester (+) lead → Red terminal 3
Tester (–) lead → Black terminal 4
Check the starter relay for continuity.
5.Main switch
Refer to "CHECKING THE SWITCH".
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ELECTRIC STARTING SYSTEM
C0NTINUITY
TURNS
CONTINUITY
CORRECT
8 - 14
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WARNING
A wire that is used as a jumper lead must
have the equivalent capacity or more as
that of the battery lead, otherwise the
jumper lead may burn.
This check is likely to produce sparks, so
be sure that no flammable gas or fluid is
in the vicinity.
DOES NOT TURN
Repair or replace the starter motor.
NO CONTINUITY
Replace the starter relay.
INCORRECT
Replace the main switch.
– +
ELEC