8-56
ELECTRICAL COMPONENTS
ECA27250
• Be careful not to lose or damage the fuse
box cover. If the fuse box cover is lost or
damaged, replace it with a new one.
• Be sure to install the fuse box cover. Water
may get inside the fuse box and cause mal-
function.
EAS31006
REPLACING THE ECU (Engine Control Unit)
1. Turn the main switch to “OFF”.
2. Replace the ECU (Engine Control Unit).
Fix the ECU “1” with the claw of air filter case
cover “2” properly.
3. Clean the throttle bodies and reset the ISC
(idle speed control) learning value.
Refer to “CHECKING AND CLEANING THE
THROTTLE BODIES” on page 7-7.
4. Check:
• Engine idling speed
Start the engine, warm it up, and then mea-
sure the engine idling speed.
EAS30552
CHECKING AND CHARGING THE BATTERY
Refer to “CHECKING AND CHARGING THE
BATTERY” in “BASIC INFORMATION” (sepa-
rate volume).
1. Remove:
• Rider seat
Refer to “GENERAL CHASSIS (1)” on
page 4-1.
2. Disconnect:
• Battery lead
(from the battery terminals)
NOTICE
ECA13700
First, disconnect the negative battery lead,
and then the positive battery lead.
3. Remove:
• Battery
Refer to “GENERAL CHASSIS (1)” on
page 4-1.
4. Check:
• Battery charge
5. Charge:
• Battery
6. Install:
• Battery
Refer to “GENERAL CHASSIS (1)” on
page 4-1.
7. Connect:
• Battery lead
(to the battery terminals)
NOTICE
ECA26980
First, connect the positive battery lead, and
then the negative battery lead.
8. Check:
• Battery terminal
Dirt → Clean with a wire brush.
Loose connection → Connect properly.
9. Lubricate:
• Battery terminal
10.Install:
• Rider seat
Refer to “GENERAL CHASSIS (1)” on
page 4-1.
EAS30553
CHECKING THE RELAYS
Check each switch for continuity with the digital
circuit tester. If the continuity reading is incor-
rect, replace the relay.
1. Disconnect the relay from the wire harness.
Engine idling speed
1200–1400 r/min
Recommended lubricant
Dielectric grease
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
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