1972-1981 Polaris Snowmobiles Master Repair Manual, Page 158Get this manual
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SCHEMATIC DIAGRAM 1974 400 CUSTOM (140 WATT AlTERNATER)
TACHOMHlR LIGHT
(OPTIONAl )
SPEEOOMHlR LIGHT
(OPTlOHHl
TAILLIGHT
X BATTERY S