Rotax 912 Series Maintenance Manual page 249

1) Table of contents
SECTION 74
IGNITION SYSTEM
1) Table of contents .................................................................................... 74-00-00 / 1
2) Systems description ................................................................................. 74-00-00 / 3
2.1.) Electric system (alternators, ignition) ............................................ 74-00-00 / 3
2.1.1) Ignition .................................................................................. 74-00-00 / 6
2.1.2) Allocation of trigger coils and ignition circuits ....................... 74-00-00 / 8
2.1.3) Firing order ........................................................................... 74-00-00 / 9
2.1.4) Ignition cables ....................................................................... 74-00-00 / 9
2.2) Connections for instrumentation ................................................... 74-00-00 / 9
2.2.1) Electronic rev counter ........................................................... 74-00-00 / 9
3) Maintenance / troubleshooting ............................................................... 74-00-00 / 11
3.1) Treatment of corrosion and surface damage ................................ 74-00-00 / 11
3.1.1 Electric system ..................................................................... 74-00-00 / 11
3.2) Checking the ignition unit, trouble shooting ................................... 74-00-00 / 11
3.3) Spark plugs ................................................................................... 74-00-00 / 12
3.4) Spark plug connectors and ignition cables .................................... 74-00-00 / 12
3.5) Electronic module, trigger coil kit .................................................. 74-00-00 / 14
3.6) Charging coil ................................................................................. 74-00-00 / 15
3.7) Generator coils .............................................................................. 74-00-00 / 16
3.8) Dual ignition coil ............................................................................ 74-00-00 / 17
3.9) Cut-in speed of ignition ................................................................. 74-00-00 / 18
3.10) Ignition timing control .................................................................... 74-00-00 / 19
3.11) Ignition circuits inspection (ignition check) ................................... 74-00-00 / 21
3.12) Measurement values for the ignition unit ...................................... 74-00-00 / 22
3.13) Wiring diagrams ............................................................................ 74-00-00 / 24
3.13.1) Engine internal (on the 912 Series) ...................................... 74-00-00 / 24
3.13.2 Engine internal (on the 914 Series) ....................................... 74-00-00 / 30
3.13.3 Engine external (on the 914 Series) ..................................... 74-00-00 / 34
3.14) Ignition electric set removal ........................................................ 74-00-00 / 35
3.15) Ignition electric set dismantling .................................................... 74-00-00 / 37
3.15.1 Dual ignition coils replacement ............................................ 74-00-00 / 37
3.16) Ignition electric set reassembly ................................................... 74-00-00 / 41
Effectivity 912/914 Series
Edition 1 / Rev. 0
BRP-Rotax
Maintenance Manual
SECTION 74
IGNITION SYSTEM
74-00-00
page 1
May 01/2007