Starter System Testing; “On-Motorcycle” Tests; Starter Relay Test; Starter Current Draw Test - Buell XB9R 2003 Service Manual

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STARTER SYSTEM TESTING

"ON-MOTORCYCLE" TESTS

Starter Relay Test

NOTE
Starter relay test also applies to ignition and key switch
relays.
1. See Figure 5-5. Locate starter relay. The relay is
attached to the relay block left of instrument console.
2. To test relay, proceed to Step 3. If installing a new starter
relay, remove old relay. Install new relay into relay block.
3. See Figure 5-6. Obtain a 12 volt battery and a continuity
tester or ohmmeter.
a. Pull relay from relay block.
b. Connect positive battery lead to the 86 terminal.
c. Connect negative battery lead to the 85 terminal to
energize relay.
d. Check for continuity between the 30 and 87 termi-
nals. A good relay shows continuity (continuity tester
lamp "on" or a zero ohm reading on the ohmmeter).
A malfunctioning relay will not show continuity and
must be replaced.
4. If starter relay is functioning properly, proceed to
STARTER CURRENT DRAW

Starter Current Draw Test

NOTES
Engine temperature should be stable and at room tem-
perature.
Battery should be fully charged.
See Figure 5-7. Check starter current draw with an induction
ammeter before disconnecting battery. Proceed as follows:
1. Verify that transmission is in neutral. Disconnect spark
plug wires from spark plug terminals.
2. Clamp induction ammeter over positive battery cable
next to starter.
3. With ignition key switch ON, turn engine over by pressing
starter switch while taking a reading on the ammeter.
Disregard initial high current reading which is normal
when engine is first turned over.
a. Typical starter current draw will range between 140-
180 amperes.
b. If starter current draw exceeds 180 amperes, then
the problem may be in the starter or starter drive.
Remove starter for further tests. See
TEST.
5.7 STARTER.
b1088x5x
Ignition
86
30
87
85
Key Switch
86
30
87
85
Figure 5-5. Relay Block (top view)
b0755x5x
Battery
Figure 5-6. Starter Relay Test
b0160x5x
Induction
Ammeter
Figure 5-7. Starter Draw Test
2003 Buell XB9R: Starter
5.6
Start
85
87
30
86
Ohmmeter
Battery
5-11