Polaris Sportsman 400 Service Manual page 350

ELECTRICAL
CURRENT DRAW - KEY OFF
CAUTION: Do not connect or disconnect the battery cable or ammeter with the engine running. Damage will
occur to light bulbs and speed limiter.
Connect an ammeter in series with the negative battery cable. Check for current draw with the key off. If the draw
is excessive, loads should be disconnected from the system one by one until the draw is eliminated. Check com-
ponent wiring as well as the component for partial shorts to ground to eliminate the draw.
Current Draw - Key Off:
Maximum of .01 DCA (10 mA)
CHARGING SYSTEM "BREAK EVEN" TEST
CAUTION: Do not connect or disconnect the battery cable or ammeter with the engine running.
CAUTION: Never use the electric starter with the ammeter connected, or damage to the meter or meter fuse
may result. Do not run test for extended period of time. Do not run test with high amperage accessories.
The "break even" point of the charging system is the point at which the alternator overcomes all system loads
(lights, etc.) and begins to charge the battery. Depending on battery condition and system load, the break even
point may vary slightly. The battery should be fully charged before performing this test.
SConnect an ammeter (set to DC amps) in series be-
tween the negative battery cable and terminal.
SConnect a tachometer according to manufacturer's in-
structions.
SWith engine off and the key and kill switch in the ON
position, the ammeter should read negative amps
(battery discharge). Reverse meter leads if a positive
reading is indicated.
SShift transmission into neutral. Start engine with recoil
only.
SIncrease engine RPM while observing ammeter and
tachometer.
SNote RPM at which the battery starts to charge (am-
meter indication is positive).
SWith lights and other electrical load off, this should oc-
cur at approximately 1500 RPM or lower.
STurn the lights on and lock parking brake to keep brake
light on.
SRepeat test, observing ammeter and tachometer.
With lights on, charging should occur at or below 2000
RPM.
10.16
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Current Draw Inspection
Key Off
+
YB14A
Less Than 10 mA
Do not use electric start.
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