8.13
ELECTRICAL
8
Main Fuse / Fuse Holder Location
A 15 Amp fuse protects the main electrical system. The fuse is
located in the battery compartment.
NOTE: Use only the recommended fuse capacity, as
use of a higher amperage fuse to correct blown-fuse
situations could lead to electrical component
damage.
Voltage Regulator / Rectifier
The voltage regulator / rectifier is located near the front of the
engine.
The regulator diodes can be tested with an ohm meter. Attach the
positive ‘+’ lead to the BK pin and the negative ‘-’ lead to the
WHT pin. There should be measurable resistance. Reverse the
leads and test. There should be no continuity. The YEL and RED
pins should be tested the same and achieve the same results.
Stator / Alternator Tests
Two tests can be performed using a multimeter to determine the
condition of the stator:
TEST 1: Measure resistance value of each stator leg.
1. Measure the resistance value of the stator legs. Use the
following chart as a reference when testing.
TEST 2: Measure AC voltage output of each stator leg. Test at
cranking rpm with a voltmeter set to read AC volts.
1. Turn over the engine with the starter motor.
2. First measure from the red wire (RD) to engine ground.
Compare readings to specifications.
3. Next measure from the yellow wire (YE) to engine ground.
Compare readings to specifications.
NOTE: To check the charging system output further,
start the engine and perform the same tests. Voltage
should increase with increased RPM.
Ohm Test
Connect
Meter Leads To:
Reading
Battery Charge Coil
BK to Ground 0.1 ± 20%
BK to YEL 0.9 ± 20%
BK to RED 1.1 ± 20%
AC Output Test
Connect
Meter Leads To:
AC Reading
Battery Charge Coil
YEL to Ground 8 Vac
RED to Ground 5 Vac
Maximum Stator Output
6.5 Amps @ W.O.T.
Take Measurements on
Stator Side of Harness
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877-999-5686
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