Polaris 2005 Sportsman MV7, Service Manual

Page: 278 / 312

ELECTRICAL
10.22
Disconnect the stator connectors from the CDI
module. Test output from the detection and pulse
(trigger) coil, and compare to the chart. The following
measurements were obtained when cranking the
engine with the electric starter, spark plug installed.
The starter system must be in good condition and the
battery fully charged.
Test Connect Meter
Wires To:
Reading (With-
out Peak Read-
ing Volt meter)
Detection
Coil
Orange and
White
0.5 VAC
Pulse
(Trigger)
Blue and Green 0.2 VAC
CURRENT DRAW - KEY OFF
CAUTION: Do not connect or disconnect the battery
cable or ammeter with the engine running. Damage
will occur to electrical components.
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 component wiring as well
as the component for partial shorts to ground to
eliminate the draw.
Refer to Illustration 1 on the next page.
-- +
Current Draw Inspection
Key Off
30 Amp
Ill. 1
Current Draw - Key Off:
Maximum of .01 DCA (10 mA)
CHARGING SYSTEM “BREAK
EVEN” TEST
CAUTION: Do not allow the battery cables to
become disconnected with the engine running.
Follow the steps below as outlined to reduce the
chance of damage to electrical components.
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.
WARNING: Never start the engine with an ammeter
connected in series. Damage to the meter or meter
fuse will result. Do not run test for extended period of
time. Do not run test with high amperage accessories.
1. Connect a tachometer to the engine.
2. Using an inductive amperage metering device,
(set to DC amps) connect to the negative battery
cable
3. With engine off and the key, kill switch, and lights
in the ON position, the ammeter should read
negative amps (battery discharge). Reverse
meter lead if a positive reading is indicated.
4. Shift transmission into Park and start the engine.
With the engine running at idle, observe meter
readings.
5. Increase engine RPM while observing ammeter
and tachometer.
6. Note RPM at which the battery starts to charge
(ammeter indication is positive).
7. With lights and other electrical loads off, the
“break even” point should occur at approximately
1500 RPM or lower.
8. With the engine running, turn the lights on and
engage parking brake lock to keep brake light on.
9. Repeat test, observing ammeter and tachometer.
With lights on, charging should occur at or below
2000 RPM.