Honda 88-91 NT650 HAWK GT Serviceanleitung Seite 224

IGNITION SYSTEM
TROUBLESHOOTI NG
B




_
When performing a spark test, keep open flames or sparks away from the work area.
No spark at one spark plug
Faulty spark plug
• Faulty spark plug wire
No spark at all plugs
• Faulty pulse gener-
ator
• Open or short Circuit
in wire harness
• Loose connectors
1. Check the spark unit connectors for loose
ABNORMAL
• Loose connectors.
contact.
NORMAL
Faulty
• Fuel pump relay (page 18-7)
2. Measure voltage between the Bl
(+)
and G
-
• Fuel pump (page 18-8)
(-)/between the BuIY
(+)
and G (-)/between • Open circuit in wire harness
Y
(+)
and G (-) of the spark unit 6P connec-
ABNORMAL
NORMAL· (page 20-1)
tor. Battery voltage should appear with the
ignition switch ON and engine stop switch at
Faulty
RUN.
-
• Neutral switch (page 18-8)
• Short circuit in wire harness
NORMAL
3-1, Check the pulse generator resistances at
ABNORMAL
I
3-2. Check the pulse generator (page 16-4).
the spark'unit 4P connector (page 16-4).
NORMAL
l.
!
ABNORMAL
No spark at either spark group (Front or Rear)-(CHECK WRONG SPARK GROUP)
1
1. Check the ignition secondary coil resistance 'f-r-_A_B_N_O_R_M_A_L _ _ .• Faulty ignition coil
(page 16-3). I • Faulty spark plug wire
NORMAL
ABNORMAL
• Faulty ignition coil
• Open circuit in wire
harness
• Loose connectors
• Open or short circuit
in wire harness
NORMAL
1
2-1. Check the ignition primary coil resistance 1f-_Ac..:.::B-' - N:..c0:..cR...:.M...:...cAc..:L=---_
at the spark unit 6P connector (page 16-3),
I
'-----,---"-------'-'----''---r-------'
ABNORMAL
• Faulty pulse gener-
ator
• Open or short circuit
in wire harness
• Loose connectors.
NORMAL
1
3-1. Check the pulse generator resistances at II-_A_B_N_O_R_M_A_L _ _
the spark unit 4P connector (page 16-4) . I
L----.------'--..::-----'-r--=--------'
1
4. Exchange the ignition coil and try the spark I,--_G=..O.::...::O..:D-=.J..:U_M_P _ _
,- • Faulty ignition coil
test.
I
16-2