Honda 954 Service Manual page 445

SYSTEM DIAGRAM
SERVICE INFORMATION
TROUBLESHOOTING
SERVICE INFORMATION
GENERAL
.
Some electrical components may be damaged if terminals or connectors are connected or disconnected while the igni-
tion switch is turned to "ON" and current is present.
When servicing the ignition system, always follow the steps in the troubleshooting sequence on page 17-3.
This motorcycle's Ignition Control Module (ICM) is built into the Engine Control Module (ECM).
The ignition timing does not normally need to be adjusted since the ECM is factory preset.
The ECM may be damaged if dropped. Also if the connector is disconnected when current is flowing, the excessive volt-
age may damage the module. Always turn off the ignition switch before servicing.
A faulty ignition system is often related t o poor connections. Check those connections before proceeding. Make sure the
battery is adequately charged. Using the starter motor with a weak battery results in a slower engine cranking speed as
well as no spark at the spark plug.
Use spark plugs of the correct heat range. Using spark plugs with an incorrect heat range can damage the engine.
The direct ignition coil that the ignition coil and spark plug cap are integrated, is adopted i n this motorcycle.
Refer to section 5 for Throttle Position (TP) sensor, cam pulse generator and ECM inspection.
SPECIFICATIONS
Standard
Spark plug
Optional
Spark plug gap
Ignition coil peak voltage
Ignition pulse generator peak voltage
mark)
17-0
17-1
17-3
ITEM
IGNITION SYSTEM
17.
IGNITION SYSTEM INSPECTION
IGNITION PULSE GENERATOR
IGNITION TIMING
I
0.8
SPECIFICATIONS
- -
0.9 m m (0.03 0.04 in)
0.7 V minimum
13' BTDC at idle
17-4
17-6
17-8
17-1