Service Manual (KLZ1000C) — page 755 of 762
Appendix › Troubleshooting Guide
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APPENDIX 18-57
Troubleshooting Guide
NOTE Spark plug dirty, broken, or gap malad-
○Refer to the Fuel System (DFI) chapter for justed
most of DFI trouble shooting guide. Spark plug incorrect
○This is not an exhaustive list, giving every Stick coil shorted or not in good contact
possible cause for each problem listed. It Stick coil trouble
is meant simply as a rough guide to assist ECU trouble
the troubleshooting for some of the more Gear position sensor, starter lockout, or
common difficulties. side stand switch trouble
Crankshaft sensor trouble
Engine Doesn’t Start, Starting
Ignition switch or engine start/stop switch
Difficulty:
shorted
Starter motor not rotating:
Starter system wiring shorted or open
Ignition switch not on and engine start/stop
Main or ignition fuse blown
switch to engine stop position
Fuel/air mixture incorrect:
Starter lockout switch or gear position sen-
Air passage clogged
sor trouble
Air cleaner clogged, poorly sealed, or miss-
Starter motor trouble
ing
Battery voltage low
Leak from oil filler cap, crankcase breather
Starter relay not contacting or operating
hose or air cleaner drain hose.
Engine start/stop switch not contacting
Compression Low:
Starter system wiring shorted or open
Spark plug loose
Ignition switch trouble
Cylinder head not sufficiently tightened
Engine start/stop switch trouble
down
Main or ignition fuse blown
Cylinder, piston worn
Starter motor rotating but engine doesn’t
Piston ring bad (worn, weak, broken, or
turn over:
sticking)
Vehicle-down sensor (DFI) coming off
Piston ring/groove clearance excessive
Immobilizer system trouble (Equipped Mod-
Cylinder head gasket damaged
els)
Cylinder head warped
Starter clutch trouble
Valve spring broken or weak
Starter idle gear trouble
No valve clearance
Engine won’t turn over:
Valve not seating properly (valve bent,
Valve seizure
worn, or carbon accumulation on the
Valve lifter seizure
seating surface)
Cylinder, piston seizure
Crankshaft seizure
Connecting rod small end seizure Poor Running at Low Speed:
Connecting rod big end seizure Spark weak:
Transmission gear or bearing seizure Battery voltage low
Camshaft seizure Immobilizer system trouble (Equipped Mod-
Starter idle gear seizure els)
Balancer bearing seizure Stick coil trouble
No fuel flow: Stick coil shorted or not in good contact
No fuel in tank Spark plug dirty, broken, or maladjusted
Fuel pump trouble Spark plug incorrect
Fuel tank air vent obstructed ECU trouble
Fuel filter clogged Crankshaft sensor trouble
Fuel line clogged Fuel/air mixture incorrect:
No spark; spark weak: Air passage clogged
Vehicle-down sensor (DFI) coming off Air cleaner clogged, poorly sealed, or miss-
Ignition switch not on ing
Clutch lever not pulled in or gear not in neu- Fuel tank air vent obstructed
tral Fuel pump trouble
Battery voltage low Fuel to injector insufficient
Immobilizer system trouble (Equipped Mod- Fuel line clogged
els) Throttle body assy holder loose
Air cleaner housing holder loose