Buell S1 Lightning Workshop Manual page 229

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STARTER AT MOMENT STARTER SWITCH IS CLOSED
Idler gear
Pinion gear
Overrunning
Clutch ring
gear
STARTER DURING CRANKING
Idler gear
Pinion gear
Clutch ring
gear
Field winding
Hold-in
winding
clutch
winding
Start circuit –
Field winding
Overrunning
Hold-in
clutch
winding
Figure 5-1. Starter Operation
Plunger
Main
contacts
Pull-in
Battery
See wiring
diagram
Main
contacts
Pull-in
winding
Battery
Start circuit –
See wiring
diagram
Armature
Brush
Ball bearing
Armature
Brush
Ball bearing
Plunger
5-3