1998 YAMAHA T105 light

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
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EAF00000
OPERATION AND
IMPORTANT RIDING
POINTS
EAF18800*Starting and warming up a cold engine
1. Turn the main switch to ON”.
2. Shift transmission into neutral.EUU03000NOTE:
When the transmission is in neutral, the
neutral indicator light (green) should be
on. If the light does not come on, ask a
Yamaha dealer to inspect it.
28
N. Neutral
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EAH48201*Engine oil
1. Oil level measurement
a. Place the motorcycle on the center-
stand. Warm up the engine for several
minutes.EUU03901NOTE:
Be sure the motorcycle is positioned
straight up when checking the oil level. A
slight tilt toward the side can result in false
readings.b. With the engine stopped, wait a few
minutes and then remove the oil level
gauge.
c. Wipe the oil level gauge off with a
clean rag and insert it in the filler hole
without screwing it in.
41
1Oil level gauge2Upper level3Lower level
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EAH20304Spark plug inspection
The spark plug is an important engine
component and is easy to inspect. The con-
dition of the spark plug can indicate the
condition of the engine. The ideal color on
the white insulator around the center elec-
trode is a medium-to-light tan color for a
motorcycle that is being ridden normally.
Do not attempt to diagnose any problems
yourself. Instead, take the motorcycle to a
Yamaha dealer. You should periodically re-
move and inspect the spark plug because
heat and deposits will cause the spark plug
to slowly break down and erode. If elec-
trode erosion becomes excessive, or if car-
bon and other deposits are excessive, you
should replace the spark plug with the
specified plug.
48
Standard spark plug:
C6HSA/NGK or U20FS-U/
NIPPONDENSO
1Spark plug gap
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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
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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
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3. Remove the drive chain. Thoroughly
clean the chain with solvent and lubri-
cate it. Reinstall the chain or store it in
a plastic bag (tied to frame for safe-
keeping).
4. Lubricate all control cables.
5. Block up the frame to raise both
wheels off the ground.
6. Tie a plastic bag over the exhaust pipe
outlet to prevent moisture from enter-
ing.
7. If storing in a humid or salt-air atmos-
phere, coat all exposed metal surfaces
with a light film of oil. Do not apply oil
to any rubber parts or the seat cover.
8. Remove the battery and charge it.
Store it in a dry place and recharge it
once a month. Do not store the bat-
tery in an excessively warm or cold
place (less than 0°C (32°F) or more
than 30°C (86°)).
EUU05800NOTE:
Make any necessary repairs before storing
the motorcycle.
65
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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
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