ENGINE CONTROL 3-1
IGNITION SYSTEM ________________________________________ 3- 2
SYSTEM COMPONENTS ............................................................................... 3- 2
FUNCTION AND FAILURE SYMPTOMS........................................................ 3- 2
PRINCIPLES OF OPERATION ....................................................................... 3- 4
IGNITION TIMING CONTROL ......................................................................... 3- 5
TESTING IGNITION SYSTEM ________________________________ 3- 6
IGNITION TROUBLESHOOTING .................................................................... 3- 6
CHECKING COIL RESISTANCE .................................................................... 3- 7
CHECKING COIL / CDI UNIT OUTPUT ......................................................... 3- 9
ENGINE STOP & EMERGENCY STOP SWITCH .......................................... 3-11
CAUTION SYSTEMS _______________________________________ 3-12
OVER REVOLUTION CAUTION SYSTEM ..................................................... 3-12
LOW OIL PRESSURE CAUTION SYSTEM .................................................... 3-13
OVERHEAT CAUTION SYSTEM ..................................................................... 3-13
TESTING OIL PRESSURE CAUTION SYSTEM ............................................ 3-14
CYLINDER TEMPERATURE SENSOR ........................................................... 3-15
REMOVAL / INSTALLATION _________________________________ 3-16
FLYWHEEL / BATTERY CHARGE & POWER SOURCE COIL /
CKP SENSOR ..................................................................................................
3-16
OIL PRESSURE SWITCH ............................................................................... 3-19
3
ENGINE CONTROL SYSTEM
CONTENTS
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