Starting System Diagnosis - Buell 2002 S3T Service Manual

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STARTING SYSTEM DIAGNOSIS

Perform Voltage Drop Tests
Between Battery and
"Relay" Terminal on
Solenoid. Less Than 1 Volt?
YES
Perform Voltage Drop
2
Tests from Battery
(Pos. +) to Starter
"Motor"Terminal.
Crank Engine. Is
Voltage Greater than
1 Volt?
YES
2 2
Perform Voltage
Drop Tests from
Battery (Pos. +)
to Starter Motor
"M" (Battery)
Terminal. Crank
Engine. Is
Voltage Greater
than 1 Volt?
NO
YES
Repair Repair or
Connection Replace
Between Solenoid
Battery and (Contacts).
Starter.
5845
5824
Relay Terminal
Motor Terminal
5-6 2001 Buell S3/S3T: Electric Starter
●
VISUAL
Solenoid Clicks.
NO
Backtrack to
2
Pinpoint Poor
Connections or
Relay Contact
1
Problems Using
Does Starter
Voltage Drop
Motor Turn if
Tests.
Jumped?
NO
Perform Voltage
Replace
Drop Test
Solenoid.
Between Battery
(Neg. -) and Starter
Studs or Bolts.
Is Voltage Greater
than 1 Volt?
NO
YES
Clean
Ground
Connections
5824
Check for Battery Voltage
at Relay Terminal 86 From
Starter Button. Battery
Voltage Present?
YES
Check for
Ground at Relay
Terminal 85.
Ground Present?
YES
Substitute
Good Relay
or Test Relay.
Battery Terminal
Figure 5-2. Starting System Diagnosis, Part 1
— BATTERY TESTS —
●
VOLTAGE
Check Connections at Battery
and Starter Components.
INOPERATIVE
Relay
Clicks.
Test for Voltage at
Solenoid Terminal. Is
12V Present When
Starter Button is
Pressed?
YES
Test for Voltage
to Relay. Is 12V
Present on Relay
Terminal 30?
NO
YES
Test for Voltage
from Relay. Is 12V
Test Starter
Present on Relay
Motor for
Terminal 87 When
Opens,
Starter Button is
5860
Shorts or
Grounds.
Repair or
Replace Starter
Motor.
5817
Repair Open
on GN Wire
Between Relay
and Solenoid.
NO
Check for Battery Voltage from Starter
Button BK/R Wire. Battery Voltage
Present With Starter Button Pressed?
NO 5
YES
Inspect Starter
Repair Wiring
Interlock
From Starter
Circuit or
Button to Relay.
Correct Relay
5832
Ground.
5828
●
LOAD
Continued on
Next Page
Nothing Clicks.
NO
NO
YES
Repair Open on
R/BK Wire Feeding
Terminal 30 on
Starter Relay.
5827
Pressed?
NO
YES
Replace
Starter Relay.
5832
5827
NO
Check for Battery Voltage to
Starter Button W/BK Wire.
Battery Voltage Present?
5831
YES
Replace Right Repair Wiring to
Handlebar Starter Button.
Switchgear.
5816
5.3
NO
5831