buell s1 lightning '97 Manual

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27
 
STARTING SYSTEM DIAGNOSIS
Check Connections at Battery 
and Starter Components.
Relay
Clicks.
Test for Voltage at 
Solenoid Terminal.  Is
12V Present When 
Starter Button is 
Pressed?
INOPERATIVE
— BATTERY TESTS —
VISUAL
VOLTAGE
LOAD
YES
NO
Test for Voltage 
to Relay. Is 12V 
Present on 
Relay Terminal 
Test for Voltage 
from Relay. Is 12V 
Present on Relay 
Terminal 87 When 
Starter Button is 
Pressed?
NO
YES
Repair Open on 
R/BK Wire Feeding 
Terminal 30 on 
Starter Relay.
YES
NO
Repair Open
on GN Wire 
Between Relay 
and Solenoid.
Replace 
Starter Relay.
Solenoid Clicks.
Does Starter 
Motor Turn  if 
Jumped?
Test Starter 
Motor for 
Opens,
Shorts or 
Grounds.
NO
YES
Replace 
Solenoid.
Substitute
Good Relay
or Test  Relay.
Nothing Clicks.
Check for Battery Voltage 
at Relay Terminal 86 From 
Starter Button. Battery 
Voltage Present?
Check for Battery Voltage from Starter 
Button BK/R Wire. Battery Voltage 
Present With Starter Button Pressed?
Check for 
Ground at Relay 
Terminal 85. 
Ground Present?
Inspect Starter 
Interlock 
Circuit or
Correct Relay 
Ground.
Check for Battery Voltage to 
Starter Button W/BK Wire. 
Battery Voltage Present?
Replace 
Starter Button.
NO
Repair Wiring to 
Starter Button.
YES
YES
Repair Wiring 
From Starter 
Button to Relay.
NO
YES
YES
NO
NO
1
Perform Voltage Drop Tests 
Between Battery and 
“Relay” Terminal  on 
Solenoid. Less Than 1 Volt?
Backtrack to 
Pinpoint Poor 
Connections or 
Relay Contact 
Problems Using 
Voltage Drop 
Tests.
YES
NO
Perform Voltage Drop
Tests from Battery 
(Pos. +) to Starter 
“Motor”Terminal. 
Crank Engine. Is 
Voltage Greater than
1 Volt?
NO
Perform Voltage 
Drop Test 
Between Battery 
(Neg. -) and Starter 
Studs or Bolts. 
Is Voltage Greater 
than 1 Volt?
Clean 
Ground 
Connections
YES
Perform Voltage 
Drop Tests  from 
Battery (Pos. +) 
to Starter Motor 
“M” (Battery) 
Terminal. Crank 
Engine. Is 
Voltage Greater 
than 1 Volt?
YES
NO
Repair 
Connection 
Between 
Battery and 
Starter.
Repair or 
Replace 
Solenoid 
(Contacts).
YES
2
2
2
2
NO
Battery terminal
Relay terminal
Motor terminal
5