Troubleshooting; General Information; Starting Failures; Incorrect Engine Idling Speed - Yamaha XJR1300 2007 Service Manual

EAS28450

TROUBLESHOOTING

EAS28460

GENERAL INFORMATION

NOTE:
The following guide for troubleshooting does not
cover all the possible causes of trouble. It should
be helpful, however, as a guide to basic trouble-
shooting. Refer to the relative procedure in this
manual for checks, adjustments, and replace-
ment of parts.
EAS28470

STARTING FAILURES

Engine
1. Cylinder(s) and cylinder head(s)
Loose spark plug
G
Loose cylinder head or cylinder
G
Damaged cylinder head gasket
G
Damaged cylinder gasket
G
Worn or damaged cylinder
G
Incorrect valve clearance
G
Improperly sealed valve
G
Incorrect valve-to-valve-seat contact
G
Valve timing deviation
G
Faulty valve spring
G
Seized valve
G
2. Piston(s) and piston ring(s)
Improperly installed piston ring
G
Damaged, worn or fatigued piston ring
G
Seized piston ring
G
Seized or damaged piston
G
3. Air filter
Improperly installed air filter
G
Clogged air filter element
G
4. Crankcase and crankshaft
Improperly assembled crankcase
G
Seized crankshaft
G
Fuel system
1. Fuel tank
Empty fuel tank
G
Clogged fuel tank breather hose
G
Clogged rollover valve
G
Clogged rollover valve hose
G
Deteriorated or contaminated fuel
G
2. Fuel pump
Faulty fuel pump
G
3. Fuel hoses
Clogged or damaged fuel hose
G
4. Throttle bodies
Clogged pilot air passage
G
Electrical system
1. Battery
TROUBLESHOOTING
Discharged battery
G
Faulty battery
G
2. Fuses
Blown, damaged or incorrect fuse
G
Improperly installed fuse
G
3. Spark plug
Incorrect spark plug gap
G
Incorrect spark plug heat range
G
Fouled spark plug
G
Worn or damaged electrode
G
Insulator damage
G
Faulty spark plug cap
G
4. Ignition coil
Cracked or broken ignition coil
G
Broken or shorted primary or secondary coils
G
Faulty spark plug lead
G
5. Ignition system
Faulty ECU.
G
Faulty crankshaft position sensor
G
Broken generator rotor woodruff key
G
6. Switches and wiring
Defective lean angle sensor
G
Faulty main switch
G
Faulty engine stop switch
G
Open or short circuit of lead or harness
G
Faulty neutral switch
G
Faulty start switch
G
Faulty sidestand switch
G
Faulty clutch switch
G
Improperly grounded circuit
G
Loose coupler and/or connector connections
G
Defective oil level gauge
G
7. Starting system
Faulty starter motor
G
Faulty starter relay
G
Defective starting circuit cut-off relay
G
Faulty starter clutch
G
EAS28490

INCORRECT ENGINE IDLING SPEED

Engine
1. Cylinder(s) and cylinder head(s)
Incorrect valve clearance
G
Damaged valve train components
G
2. Air filter
Clogged air filter element
G
Fuel system
1. Throttle bodies
Air intake in throttle body joint
G
Defective throttle bodies synchronization
G
Improper throttle cable free play
G
Defective air induction system
G
Electrical system
1. Battery
8-1