WINDING
22
22
225A
56VA
225A
224A
224
225
225
14
224A
1VA
14
TX
0
0
23
224B
225B
194
0
1
7
2
16
14
0
0
4
6
0
0
0
BCR
6
7
3
9
4
9
22
0
FS1
62
0
0
11
16
13
BCR - BATTERY CHARGE RELAY
CB - CIRCUIT BREAKER, MAIN OUTPUT
IM1 - IGNITION MODULE, CYLINDER #1
HTO - HIGH OIL TEMPERATURE SWITCH
IM2 - IGNITION MODULE, CYLINDER #2
F1 - FUSE 15 AMP
FS1 - FUEL SOLENOID
44
DIAGRAM KEY
BA - BRUSH ASSEMBLY
33
CB
11
23194 N2 N1
33
0
SC
SM
SC
33
22
44
BATTERY
12V
RED
0
0
11
85
18
86
HTO
LOP
IM2
IM1
ENGINE AND
ALTERNATOR
SP1
SP2
FIELD
BA
0
SW1 - SWITCH, AUTO / OFF / MANUAL
TX - TRANSFORMER, 16 Vac 56 VA &
SW2 - SWITCH, SET EXERCISE
16 Vac 1 VA (DUAL SEC.)
SPST, N.C., ON-(OFF)
SCR - STARTER CONTACTOR RELAY
SP1, SP2 - SPARK PLUGS
DPDT, ON-OFF-ON
SC - STARTER CONTACTER
44
DPE
POWER
WINDING
22
11
33
S TATOR
CHARGE
WINDING
BATTERY
77 66
224A 225A
13
66
6
77
2
4
224
N2
N1
7766
11
22
0
7766
WINDING
POWER
I.C.T.
LC2
LC1
LC2
LC1
ICT - IDLE CONTROL TRANSFORMER
CS - IDLE CHOKE SOLENOID
11
0
FS2
LOP - LOW OIL PRESSURE SWITCH
SM - STARTER MOTOR
FS2 - FUEL SOLENOID(530cc V-TWIN ONLY)
16
NEUTRAL
CONTACTOR
OUTPUT TO
TRANSFER SWITCH
240VAC GENERATOR
12Vdc
COIL
RELAY
TRANSFER
UTILITY
INPUT
240VAC
TR
Page 87
DC CONTROL
SECTION 4.2
OPERATIONAL ANALYSIS
PART 4
Figure 3. Circuit Condition - Engine Cranking
• Printed circuit board action delivers 12 volts DC to the fuel solenoids (FS1 & FS2), via Wire 14. The fuel sole-
noids energize open and fuel is available to the engine. Wire 14 energizes the battery charge relay (BCR),
which will allow the BCR to power the battery charger. Wire 14 supplies power to the choke solenoid (CS).
Circuit board action grounds Wire 90, energizing the choke solenoid cyclically during cranking and continuously
while running.
• As the engine cranks, magnets on the engine flywheel induce a high voltage into the engine ignition magnetos
(IM1/IM2). A spark is produced that jumps the spark plug (SP1/SP2) gap.
• During cranking, Wire 4 supplies 3-5 VDC (9-10 VDC isolated) to the rotor for field flash.
• With ignition and fuel flow available the engine can start.
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