Testing; Milliampere Draw Test; Total Current Draw Test; Current And Voltage Output Test: Using Hd-48053 - Buell 2008 XB SERIES Electrical Diagnostics Manual

TESTING

PART NUMBER
HD-48053 ADVANCED BATTERY CONDUCT-
ANCE AND ELECTRICAL SYSTEM
ANALYZER

Milliampere Draw Test

NOTE
Be sure accessories are not wired so they stay on at all times.
This condition could drain the battery completely if vehicle is
parked for a long time. Check for this by connecting ammeter
between negative battery cable and ground.
1. See Figure 1-20. Connect ammeter between negative
battery terminal and battery. With this arrangement, you
will also pick up any regulator drain.
2. With ignition switch turned to OFF and all lights and
accessories off, observe current reading.
a. Maximum reading should be 2.0 miliamperes,
b. A higher reading indicates excessive current draw.
Any accessories must be considered and checked
for excessive drain.
NOTE
A battery with a surface discharge condition could suffer a
static drain. Correct by cleaning battery case.
ed01452
1
1. Battery
2. Induction ammeter
3. Battery negative cable
Figure 1-20. Milliampere Draw Test (Ignition turned to OFF)

Total Current Draw Test

If battery runs down during use, the current draw of the
motorcycle components and accessories may exceed output
of the charging system.
1-30 2008 Buell XB Diagnostics: Starting / Charging
TOOL NAME
2
3
NOTE
If a load tester is unavailable, an ammeter with current probe
may be used.
Turn battery load tester OFF before connecting tester
cables to battery terminals. Connecting tester cables with
load tester ON can cause a spark and battery explosion,
which could result in death or serious injury. (00252a)
1. See Figure 1-21. To check for this condition, place load
tester induction pickup or current probe pickup over battery
negative cable.
2. Disconnect stator plug from voltage regulator. Start and
run the engine at 2000 RPM.
3. With ignition and all continuously running lights and
accessories turned on (headlamp on high beam), read the
total current draw.
4. Compare this reading to the reading obtained after per-
forming the Current and Voltage Output Test.
a. The current output should exceed current draw by
3.5 amps minimum.
b. If output does not meet specifications, there may be
too many accessories for the charging system to
handle.
5. Reconnect voltage regulator after testing.
ed01453
2
1. Load tester
2. Battery
Figure 1-21. Check Current Draw (Ignition Switch On)
Current and Voltage Output Test: Using
HD-48053
1. Connect the ADVANCED BATTERY CONDUCTANCE
AND ELECTRICAL SYSTEM ANALYZER (Part No. HD-
1