Ignition
Page 2A-14
90-8M0050731 MAY 2011
Theory of Operation ‑ Internal Ignition Coil Driver Models
When the ignition key is turned to the "RUN" position, battery voltage is supplied to the electrical system through the main power
relay. If the propulsion control module (PCM) does not sense engine rotation within a certain time period, the relay is turned off.
Engine rotation will engage the relay. When the main power relay is closed, voltage is supplied through the 20 amp ignition fuse
to the positive terminal on all of the ignition coils. Each coil contains an internal driver circuit. The driver circuit switches the primary
current on for a given time period (dwell), and then switches it off, collapsing the coil magnetic field creating a spark. The crankshaft
position sensor (CPS) reads the position pattern on the flywheel, which allows the PCM to monitor the position of the crankshaft
while the engine is running. At the proper time for ignition spark, the PCM sends a signal to the coil driver to dwell and then provide
spark. When the engine is operating at lower RPM, this process is repeated in quick succession to provide a multi‑strike spark for
each combustion event. The number of strikes per event is varied, depending on RPM and load requirements. The spark plug
irridium electrode and ground extends into the combustion chamber.
Fuses
IMPORTANT: Always carry spare 5 and 20 amp fuses.
The electrical wiring circuits on the engine are protected from overload by fuses in the wiring. If a fuse is open, try to locate and
correct the cause of the overload. If the cause is not found, the fuse may open again.
1. Open the fuse holder and look at the silver colored band inside the fuse. If the band is broken, replace the fuse.
2. Replace the fuse with a new fuse with the same rating.
The fuses and circuits are identified as follows:
a -
Good fuse
b -
Blown fuse
c -
SmartCraft data bus circuit ‑ 5 amp fuse
d -
Ignition system circuit ‑ 20 amp fuse
e -
Spare fuse
f -
Electric fuel pump (VST)/ECM driver power/
oil pump circuit ‑ 20 amp fuse
g -
Main power relay ‑ 15 amp fuse
a -
Lift pump
b -
Lift pump circuit ‑ 5 amp fuse
5
20
20
g
c
d
f
20
15
b
a
e
44940
b
a
44761
Содержание 200 OptiMax Jet Drive
Страница 5: ...Page iv ...
Страница 30: ...General Information Notes 90 8M0050731 MAY 2011 Page 1C 5 ...
Страница 43: ...General Information Notes Page 1C 18 90 8M0050731 MAY 2011 ...
Страница 84: ...Ignition Notes 90 8M0050731 MAY 2011 Page 2A 3 ...
Страница 89: ...Ignition Page 2A 8 90 8M0050731 MAY 2011 Electrical Plate Engine Harness 44731 1 2 3 4 5 6 ...
Страница 147: ...Charging and Starting System Notes Page 2B 36 90 8M0050731 MAY 2011 ...
Страница 153: ...Timing Synchronizing and Adjusting Notes Page 2C 6 90 8M0050731 MAY 2011 ...
Страница 156: ...Fuel Pump Notes 90 8M0050731 MAY 2011 Page 3A 3 ...
Страница 177: ...Direct Fuel Injection Page 3B 14 90 8M0050731 MAY 2011 Fuel Hose Components 4256 3 8 1 8 8 5 8 8 8 8 8 6 7 4 4 2 ...
Страница 179: ...Direct Fuel Injection Page 3B 16 90 8M0050731 MAY 2011 Air Hose Components 4257 1 1 2 3 6 4 5 7 8 9 ...
Страница 245: ...Direct Fuel Injection Notes Page 3B 82 90 8M0050731 MAY 2011 ...
Страница 248: ...Oil Injection Notes 90 8M0050731 MAY 2011 Page 3C 3 ...
Страница 261: ...Oil Injection Notes Page 3C 16 90 8M0050731 MAY 2011 ...
Страница 275: ...Powerhead Page 4A 10 90 8M0050731 MAY 2011 Exhaust Manifold and Exhaust Plate 7 44904 1 2 3 4 5 6 8 10 9 7 ...
Страница 277: ...Powerhead Page 4A 12 90 8M0050731 MAY 2011 Cylinder Head 14 44903 1 2 3 3 4 5 6 7 8 9 10 ...
Страница 283: ...Powerhead Page 4A 18 90 8M0050731 MAY 2011 Ref No Qty Description Torque Nm lb in lb ft 41 1 Hose 42 1 Worm gear clamp ...
Страница 326: ...Powerhead 90 8M0050731 MAY 2011 Page 4A 61 Starboard Side Oil Hose Routing 45579 ...
Страница 327: ...Powerhead Page 4A 62 90 8M0050731 MAY 2011 Port Side Oil Hose Routing 45580 ...
Страница 339: ...Powerhead Notes Page 4A 74 90 8M0050731 MAY 2011 ...
Страница 346: ...Cooling Notes 90 8M0050731 MAY 2011 Page 4B 7 ...
Страница 349: ...Cooling Notes Page 4B 10 90 8M0050731 MAY 2011 ...
Страница 367: ...Pump Unit Page 5A 18 90 8M0050731 MAY 2011 Ref No Qty Description Torque Nm lb in lb ft 41 1 Hose 42 1 Worm gear clamp ...