Alternators; Polaris Snowmobiles; Tachometers - Polaris 2003 Pro X Service Manual

Alternators

The 6 pulse alternator system is the number of AC sine waves created by the alternator in one revolution of the
crankshaft. For example, in a 6 pulse system, the alternator will create 6 pulses, or 6 complete AC sine waves, in
one crankshaft revolution. The tachometer reads these sine waves, therefore giving you accurate RPM readings.
A 3 pulse tachometer cannot be used on a 6 pulse system. If this is done, the tachometer will read double RPM.
Refer to the following text for applications.

Polaris Snowmobiles:

All Polaris Domestic twin cylinder engines
Fuji 3 cylinder engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuji Fan Cooled EC45/55PM

Tachometers:

Tachometers for snowmobiles will have an identification marking on the back side. For example: The tachomter
for a 600 RMK will have "6 pulse" (or 6P) written on it.
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6-Pulse
ELECTRICAL
6 pulse
6 pulse
6 pulse
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