1998 YAMAHA T105 brake light

GIVE SAFETY THE RIGHT OF WAY ...............5
GENERAL NOTE..............................................6
DESCRIPTION ..................................................8
MOTORCYCLE IDENTIFICATION ...................9
Identification numbers record ...................9
Key identification number .......................10
Frame serial number ................................10
Engine serial number ...............................10
CONTROL FUNCTIONS................................11
Main switch ...............................................11
Indicator lights ..........................................12
Instrument panel.......................................13
Handlebar switches ..................................14
Shift pedal .................................................16
Front brake lever .......................................16
Rear brake pedal .......................................17
Fuel tank cap .............................................17
Starter lever 1..........................................18
Kick starter .................................................18Steering lock..............................................19
Seat ............................................................20
Helmet holder ...........................................21
Side cover removal...................................21
PRE-OPERATION CHECKS ...........................22
Fuel .............................................................24
Engine oil ...................................................25
Tires ............................................................26
OPERATION AND IMPORTANT
RIDING POINTS.............................................27
Starting and warming up a
cold engine ................................................28
Starting a warm engine ...........................30
Shifting.......................................................31
To start out and accelerate.......................31
To decelerate .............................................33
Engine break-in .........................................34
Parking .......................................................36
3
EAA30001
CONTENTS
T105(E) O/M-1 9/11/01 11:16 AM Page 3 (1,1)

4
PERIODIC MAINTENANCE AND
MINOR REPAIR..............................................37
Tool kit ........................................................38
Periodic maintenance/lubrication ...........39
Engine oil ...................................................41
Air filter ......................................................44
Throttle cable adjustment ........................46
Carburetor adjustment .............................47
Idle speed adjustment ..............................47
Spark plug inspection ..............................48
Front brake adjustment ............................50
Rear brake adjustment .............................51
Brake light switch adjustment .................52
Checking the brake shoes ........................52
Drive chain slack check ............................53
Drive chain slack adjustment ..................54
Drive chain lubrication .............................56
Brake lever and pedal ...............................57
Center and sidestand ...............................57Front fork inspection ................................58
Battery ........................................................59
Replenishing the battery fluid .................61
Fuse replacement .....................................62
Troubleshooting ........................................63
CLEANING AND STORAGE .........................64
Cleaning .....................................................64
Storage ......................................................64
SPECIFICAITIONS .........................................66
T105(E) O/M-1 9/11/01 11:16 AM Page 4 (1,1)

EAA50000
DESCRIPTION
8
1. Tail/Brake light
2. Rear flasher light
3. Side cover
4. Fuel tank cap
5. Front flasher light
6. Kick starter
7. Rear brake pedal
8. Head light
9. Fuel tank
10. Seat lock11. Shift pedal
12. Handlebar switch
13. Speedometer
14. Fuel gauge
15. Main switch/steering lock
16. Throttle grip
17. Front brake lever
18. Indicator light
19. Helmet holder
20. Starter lever
T105(E) O/M-1 9/11/01 11:16 AM Page 8 (1,1)

22
PRE-OPERATION CHECKS
Before using this motorcycle, check the following points:
Item Routine Page
Fuel9Check fuel level/top up as required. 24
Engine oil9Check oil level/add oil as required. 25, 41~43
9Check operation, condition and free play. Adjust if necessary.
BrakeMake sure the brankes are working properly by checking at 50~52
low speed shortly.
Throttle grip/Housing9Check for smooth operation. Lubricate/Adjust if necessary.—
Drive chain9Check chain slack and condition. Adjust if necessary. 53~56
Wheels/Tires9Check tire pressure, wear, damage and spoke tightness. 26~27
Control/Meter cable9Check for smooth operation. Lubricate if necessary.—
Brake and shift pedal shafts9Check for smooth operation. Lubricate if necessary. 57
Brake lever pivots9Check for smooth operation. Lubricate if necessary. 57
Center and sidestand pivots9Check for smooth operation. Lubricate if necessary. 57
Fittings/fasteners9Check all chassis fittings and fasteners.
—
9Tighten/Adjust, if necessary.
Lights and signals9Check for proper operation.—
Switches9Check for proper operation.—
Battery9Check fluid level, top-up with distilled water if necessary. 59~61
T105(E) O/M-1 9/11/01 11:16 AM Page 22 (1,1)

Rear brake adjustment
The rear brake pedal free play should be
adjusted to 20~30 mm at the brake pedal
end. Turn the adjuster on the brake rod
clockwise to reduce play or counterclock-
wise to increase play.EUU69800w1. The rear brake pedal adjustment must
be checked whenever the chain is ad-
justed or the rear wheel is removed
and then reinstalled.
2. Check the operation of the brake light
after adjusting the rear brake.
51
A. Free play: 20~30 mm1Adjuster
T105(E) O/M-3 9/11/01 11:17 AM Page 51 (1,1)

EAH83301Brake light switch adjustment
The brake light switch is operated by
movement of the brake pedal. To adjust,
hold the main body of the switch so it does
not rotate and turn the adjusting nut.
Proper adjustment is achieved when the
brake light comes on just before the brake
begins to take effect.EAH81601Checking the brake shoes
A wear indicator is provided on each brake.
This indicator allows checking of shoe
wear without disassembling the brake.
Apply the brake and check the position of
the indicator. If the indicator reaches to the
wear limit line, ask a Yamaha dealer to re-
place the shoes.
52
1Brake light switch1Wear limit2Indicator
T105(E) O/M-3 9/11/01 11:17 AM Page 52 (1,1)

70
Model
Wheel travel:
Front 80 mm
Rear 65 mm
Electrical:
Ignition system C.D.I
Generator system Flywheel magneto
Battery type/capacity 12V5AH
Headlight type: Krypton bulb
Bulb wattage/quantity:
Headlight 12V30W/30W
Tail/brake light 12V/5W/21W
Flasher light 12V10W ×4
Meter light 12V1.7W ×1
Indicator light wattage/quantity:
“NEUTRAL” 12V3.4W ×1
“HIGH BEAM” 12V3.4W ×1
“TURN” 12V3.4W ×1
“TOP” 12V3.4W ×1
T105(E) O/M-3 9/11/01 11:17 AM Page 70 (1,1)