Yamaha CS50 Service Manual page 196

STARTING FAILURE / HARD STARTING
ENGINE ....................................................................................9-1
FUEL SYSTEM ...........................................................................9-1
ELECTRICAL SYSTEM ...............................................................9-2
INCORRECT ENGINE IDLING SPEED .............................................9-2
ENGINE ....................................................................................9-2
FUEL SYSTEM ...........................................................................9-2
ELECTRICAL SYSTEM ...............................................................9-2
POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE ........................9-3
ENGINE ....................................................................................9-3
FUEL SYSTEM ...........................................................................9-3
FAULTY CLUTCH...........................................................................9-3
ENGINE OPERATES BUT SCOOTER WILL NOT MOVE .....................9-3
CLUTCH SLIPS ........................................................................9-3
POOR STARTING PERFORMANCE ................................................9-3
POOR SPEED PERFORMANCE ...................................................9-3
OVERHEATING ..............................................................................9-4
ENGINE ....................................................................................9-4
COOLING SYSTEM .....................................................................9-4
FUEL SYSTEM ...........................................................................9-4
CHASSIS .................................................................................9-4
ELECTRICAL SYSTEM ...............................................................9-4
OVERCOOLING (CS50Z only) .........................................................9-4
COOLING SYSTEM .....................................................................9-4
POOR BRAKING PERFORMANCE ...................................................9-4
FAULTY FRONT FORK LEGS .........................................................9-5
LEAKING OIL ...........................................................................9-5
MALFUNCTION ........................................................................9-5
UNSTABLE HANDLING ..................................................................9-5
FAULTY LIGHTING OR SIGNALING SYSTEM ....................................9-6
HEADLIGHT DOES NOT COME ON................................................9-6
HEADLIGHT BULB BURNT OUT ...................................................9-6
TAIL/BRAKE LIGHT DOES NOT COME ON ....................................9-6
TAIL/BRAKE LIGHT BULB BURNT OUT ..........................................9-6
TURN SIGNAL DOES NOT COME ON ..........................................9-6
TURN SIGNAL BLINKS SLOWLY ...................................................9-6
TURN SIGNAL REMAINS LIT ......................................................9-6
TURN SIGNAL BLINKS QUICKLY...................................................9-6
HORN DOES NOT SOUND .........................................................9-6
CHAPTER 9
TROUBLESHOOTING
..........................................9-1
TRBL
SHTG