CHARGING AND STARTING SYSTEM
Page 2B-10 90-828631R3 MARCH 1999
Alternator System Test (10 Ampere Stator)
1. Check battery voltage at battery with engine running.
2. If battery voltage is above 14.5-15.0 volts, replace voltage regulator/rectifier. Check con-
dition of battery as overcharging may have damaged battery.
3. If battery voltage is below 14.5 volts, charge battery; refer to “CHARGING A DIS-
CHARGED BATTERY”. If battery can NOT be satisfactorily charged, replace battery.
4. If battery accepts a satisfactory charge, check battery voltage while cranking engine;
refer to “CHARGING A DISCHARGED BATTERY”. If cranking voltage is not acceptable,
replace battery.
5. If cranking voltage is acceptable, disconnect the RED (voltage regulator) wire bullet con-
nector from the RED/PUR wire.
6. Connect RED (+) ammeter lead to RED wire and the BLACK (–) ammeter lead to the
Red/PUR wire.
7. Secure starter wires away from flywheel.
8. With engine running at the indicated rpm, the ammeter should indicate the following ap-
propriate amperes:
RPM AMPERES
Idle 4.2
1000 6.0
10 Ampere
Stator
2000 8.0
3000 8.4
4000 8.5
5000 8.6
9. A reading of 8.5-8.6 amperes at 5000 rpm indicates the charging system is functioning
properly.
10. If ammeter reads less than required amperes @ 5000 rpm, test the stator; refer to “Sta-
tor Ohm Test”. If stator tests OK, replace rectifier/regulator.
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