Electrical Systems; Incorrect Engine Idling Speed; Engine; Fuel System - Yamaha XV1600A1999 Service Manual

ELECTRICAL SYSTEMS

Battery (See page 3-51 to 3-56)
S Faulty battery
S Discharged battery
Fuses (See page 3-56 to 3-58)
S Blown, damaged, or incorrect fuse
S Incorrectly installed fuse
Spark plugs (See page 3-14 to 3-15)
S Incorrect spark plug gap
S Incorrect spark plug heat range
S Fouled spark plug
S Worn or damaged electrode
S Worn or damaged insulator
S Faulty spark plug cap
Ignition coils (See page 7-14 to 7-15)
S Damaged ignition coil
S Broken or shorted primary or secondary
coils
S Faulty spark plug lead
EAS00846

INCORRECT ENGINE IDLING SPEED

ENGINE

Cylinders and cylinder heads (See page
5-39 to 5-43 and 5-53 to 5-59)
S Incorrect valve clearance
S Damaged valve train components
Air filter (See page 3-7 and 3-29)
S Clogged air filter element

FUEL SYSTEM

Carburetor (See page 6-1 to 6-20)
S Faulty starter plunger
S Loose or clogged pilot jet
S Loose or clogged pilot air jet
S Damaged or loose carburetor joint
S Incorrectly adjusted engine idling speed
(throttle stop screw)
S Incorrect throttle cable free play
S Flooded carfuretor
S Faulty air induction system
STARTING PROBLEMS/
INCORRECT ENGINE IDLING SPEED
Ignition system (See page 7-12 to 7-16)
S Faulty ignitor unit
S Faulty pickup coil
Switches and wiring (See page 7-7 to 7-8)
S Faulty main switch
S Faulty engine stop switch
S Broken or shorted wiring
S Faulty neutral switch
S Faulty start switch
S Faulty sidestand switch
S Faulty clutch switch
S Incorrectly grounded circuit
S Loose connections
Starting system (See page 7-17 to -7-27)
S Faulty starter motor
S Faulty starter relay
S Faulty starting circuit cutoff relay
S Faulty starter clutch
ELECTRICAL SYSTEMS
Battery (See page 3-51 to 3-56)
S Incorrectly charged battery
S Faulty battery
Spark plugs (See page 3-14 to 3-15)
S Incorrect spark plug gap
S Incorrect spark plug heat range
S Fouled spark plug
S Worn or damaged electrode
S Worn or damaged insulator
S Faulty spark plug cap
Ignition coils (See page 7-14 to 7-15)
S Broken or shorted primary or secondary
coils
S Faulty spark plug lead
S Damaged ignition coil
Ignition system (See page 7-12 to 7-16)
S Faulty ignitor unit
S Faulty pickup coil
8-2
TRBL
SHTG