PERIODIC MAINTENANCE AND MINOR REPAIRS..... 6-1
Tool kit..................................................................... 6-2
PERIODIC MAINTENANCE/LUBRICATION......... 6-3
Torque specifications............................................. 6-5
Engine oil................................................................ 6-6
Oil pressure ............................................................ 6-9
Air filter .................................................................6-10
Carburetor adjustment ......................................... 6-12
Valve clearance adjustment.................................6-12
Idle speed adjustment..........................................6-13
Throttle cable adjustment....................................6-14
Spark plug inspection...........................................6-15
Rear brake adjustment ......................................... 6-16
Brake light switch adjustment ..............................6-17
Checking the front brake pads and rear brake
shoes.................................................................... 6-17
Front brake...........................................................6-18
Rear brake ............................................................ 6-18
Inspecting the brake fluid level ............................6-19
Brake fluid replacement.......................................6-20
Clutch adjustment................................................6-20
Drive chain slack check .......................................6-21
Drive chain slack adjustment...............................6-22
Drive chain lubrication..........................................6-23
Cable inspection and lubrication..........................6-23
Throttle cable and grip lubrication.......................6-24Brake and shift pedals ......................................... 6-24
Brake and clutch levers ....................................... 6-24
Sidestand ............................................................. 6-24
Front fork inspection ............................................ 6-25
Steering inspection.............................................. 6-26
Wheel bearings.................................................... 6-26
Battery.................................................................. 6-27
Replenishing the battery fluid .............................. 6-28
Fuse replacement................................................ 6-29
Headlight bulb replacement................................. 6-30
Turn signal bulb replacement.............................. 6-32
Taillight bulb replacement.................................... 6-32
Front wheel removal............................................. 6-33
Front wheel installation........................................ 6-34
Rear wheel removal............................................. 6-35
Rear wheel installation ......................................... 6-36
Troubleshooting.................................................... 6-36
Troubleshooting chart.......................................... 6-37
CLEANING AND STORAGE....................................... 7-1
CLEANING............................................................. 7-1
STORAGE.............................................................. 7-2
SPECIFICATIONS ........................................................ 8-1
XII
PERIODIC MAINTENANCE AND MINOR REPAIRS..... 6-1
Tool kit..................................................................... 6-2
PERIODIC MAINTENANCE/LUBRICATION......... 6-3
Torque specifications............................................. 6-5
Engine oil................................................................ 6-6
Oil pressure ............................................................ 6-9
Air filter .................................................................6-10
Carburetor adjustment ......................................... 6-12
Valve clearance adjustment.................................6-12
Idle speed adjustment..........................................6-13
Throttle cable adjustment....................................6-14
Spark plug inspection...........................................6-15
Rear brake adjustment ......................................... 6-16
Brake light switch adjustment ..............................6-17
Checking the front brake pads and rear brake
shoes.................................................................... 6-17
Front brake...........................................................6-18
Rear brake ............................................................ 6-18
Inspecting the brake fluid level ............................6-19
Brake fluid replacement.......................................6-20
Clutch adjustment................................................6-20
Drive chain slack check .......................................6-21
Drive chain slack adjustment...............................6-22
Drive chain lubrication..........................................6-23
Cable inspection and lubrication..........................6-23
Throttle cable and grip lubrication.......................6-24Brake and shift pedals ......................................... 6-24
Brake and clutch levers ....................................... 6-24
Sidestand ............................................................. 6-24
Front fork inspection ............................................ 6-25
Steering inspection.............................................. 6-26
Wheel bearings.................................................... 6-26
Battery.................................................................. 6-27
Replenishing the battery fluid .............................. 6-28
Fuse replacement................................................ 6-29
Headlight bulb replacement................................. 6-30
Turn signal bulb replacement.............................. 6-32
Taillight bulb replacement.................................... 6-32
Front wheel removal............................................. 6-33
Front wheel installation........................................ 6-34
Rear wheel removal............................................. 6-35
Rear wheel installation ......................................... 6-36
Troubleshooting.................................................... 6-36
Troubleshooting chart.......................................... 6-37
CLEANING AND STORAGE....................................... 7-1
CLEANING............................................................. 7-1
STORAGE.............................................................. 7-2
SPECIFICATIONS ........................................................ 8-1
XII
6-30
1
1
1. Screw
Headlight bulb replacementIf the headlight bulb burns out, replace the bulb as follows:
1. Remove the screws. 2. Loosen the bulb connectors and remove the rubber cover.
3. Turn the bulb socket counterclockwise and remove the
bulb.
Keep flammable products and your hands away from the
bulb while it is on, as it is hot. Do not touch the bulb until it
cools down
1. Rubber cover
CAUTION:
6-30
1
1
1. Screw
Headlight bulb replacement
If the headlight bulb burns out, replace the bulb as follows:
1. Remove the screws. 2. Loosen the bulb connectors and remove the rubber cover.
3. Turn the bulb socket counterclockwise and remove the
bulb.
Keep flammable products and your hands away from the
bulb while it is on, as it is hot. Do not touch the bulb until it
cools down
1. Rubber cover
CAUTION:
6-31
1. Bulb
4. Put a new bulb, install the socket and the bulb rubber
cover.
5. Reconnect the connectors.
6. Reinstall the headlight assy. If it is necessary to adjust
the headlight beam, please consult a Yamaha dealer.
Avoid touching the glass part of the headlight bulb to
keep it free from oil, otherwise the transparency of
the glass, the life of the bulb and the luminous flux
will be adversely affected. If the headlight bulb gets
soiled, thoroughly clean it with a cloth moistened with
alcohol or lacquer thinner.
WARNING:
6-31
1. Bulb
4. Put a new bulb, install the socket and the bulb rubber
cover.
5. Reconnect the connectors.
6. Reinstall the headlight assy. If it is necessary to adjust
the headlight beam, please consult a Yamaha dealer.
Avoid touching the glass part of the headlight bulb to
keep it free from oil, otherwise the transparency of
the glass, the life of the bulb and the luminous flux
will be adversely affected. If the headlight bulb gets
soiled, thoroughly clean it with a cloth moistened with
alcohol or lacquer thinner.
WARNING:
8-5
MODEL YBR 125ED
Headlight type: Halogen bulb
Bulb wattage x quantity: Headlight 12V 35w /35w (1pc)
tail / Brake light 12V 5w / 21w (1pc)
Flasher light 12V 10w (4pc)
Indicator light wattage x quantity: Panel 12V x 3,4W (2pc)
Neutral lamp 14V x 3W (1pc)
Headlight 14V x 3W (1pc)
Flasher light 14V x 3W (2pc)
8-5
MODEL YBR 125ED
Headlight type: Halogen bulb
Bulb wattage x quantity: Headlight 12V 35w /35w (1pc)
tail / Brake light 12V 5w / 21w (1pc)
Flasher light 12V 10w (4pc)
Indicator light wattage x quantity: Panel 12V x 3,4W (2pc)
Neutral lamp 14V x 3W (1pc)
Headlight 14V x 3W (1pc)
Flasher light 14V x 3W (2pc)