2000 YAMAHA TW125 ignition

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INSTRUMENT AND CONTROL FUNCTIONS
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EAU00157Shift pedal
This motorcycle is equipped with a
constant-mesh 5-speed transmis-
sion.
The shift pedal is located on the
left side of the engine and is used
in combination with the clutch
when shifting.
1. Shift pedal
N. Neutral
EAU00152Clutch lever
The clutch lever is located on the
left handlebar, and the ignition cir-
cuit cut-off system is incorporated
in the clutch lever holder. Pull the
clutch lever to the handlebar to dis-
engage the clutch, and release the
lever to engage the clutch. The
lever should be pulled rapidly and
released slowly for smooth clutch
operation. (Refer to the engine
starting procedures for a descrip-
tion of the ignition circuit cut-off
system.)
1. Clutch lever
EAU00158Front brake lever
The front brake lever is located on
the right handlebar. Pull it toward
the handlebar to apply the front
brake.
1. Front brake lever
11
1
N5
4
3
2
1
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3-11
INSTRUMENT AND CONTROL FUNCTIONS
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EAU00330Sidestand
This model is equipped with an
ignition circuit cut-off system. The
motorcycle must not be ridden
when the sidestand is down. The
sidestand is located on the left side
of the frame. (Refer to page 5-1 for
an explanation of this system.)
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This motorcycle must not be oper-
ated with the sidestand in the
down position. If the stand is not
properly retracted, it could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha has designed into
this motorcycle a lockout system
to assist the operator in fulfilling
the responsibility of retracting the
sidestand. Please check carefully
the operating instructions listed
below and if there is any indication
of a malfunction, return the motor-
cycle to a Yamaha dealer immedi-
ately for repair.
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5-1
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
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8Before riding this motorcycle,
become thoroughly familiar
with all operating controls and
their functions. Consult a
Yamaha dealer regarding any
control or function that you do
not thoroughly understand.
8Never start your engine or let
it run for any length of time in
a closed area. The exhaust
fumes are poisonous and can
cause loss of consciousness
and death within a short time.
Always operate your motorcy-
cle in an area with adequate
ventilation.
8Before starting out, always be
sure the sidestand is up.
Failure to retract the sidestand
completely can result in a seri-
ous accident when you try to
turn a corner.
EAU03011Starting the engine
NOTE:
This motorcycle is equipped with
an ignition circuit cut-off system.
The engine can be started only
under one of the following condi-
tions:
8The transmission is in neutral.
8The sidestand is up, the trans-
mission is in gear and the
clutch is disengaged.
The motorcycle must not be ridden
when the sidestand is down.
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Before going through the follow-
ing steps, check the function of the
sidestand switch and clutch
switch. (Refer to page 3-12.)
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5-6
OPERATION AND IMPORTANT RIDING POINTS
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RES
ONFUEL
OFF
EAU00457Parking
When parking the motorcycle, stop
the engine and remove the ignition
key. Turn the fuel cock to “OFF”
whenever stopping the engine.
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The exhaust system is hot. Park
the motorcycle in a place where
pedestrians or children are not
likely to touch the motorcycle. Do
not park the motorcycle on a slope
or soft ground; the motorcycle
may overturn.
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6-38
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU01008Troubleshooting
Although Yamaha motorcycles
receive a rigid inspection before
shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compres-
sion, or ignition systems can cause
poor starting and loss of power.
The troubleshooting chart
describes a quick, easy procedure
for making checks.
If your motorcycle requires any
repair, bring it to a Yamaha dealer.
The skilled technicians at a
Yamaha dealership have the tools,
experience, and know-how to
properly service your motorcycle.
Use only genuine Yamaha parts on
your motorcycle. Imitation parts
may look like Yamaha parts, but
they are often inferior.
Consequently, they have a shorter
service life and can lead to expen-
sive repair bills.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU03009Troubleshooting chartEW000125
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Never check the fuel system while smoking or in the vicinity of an open flame.
1. Fuel
2. Compression
3. Ignition
4. Battery
Use the electric starter.
Remove spark
There is compression.
Go to ignition check.
No compression.
Ask a Yamaha dealer to inspect.
Wet.
Dry.Wipe clean with dry cloth and Open throttle half-way and start
Ask a Yamaha dealer to inspect.
Engine turns over
Engine turns overBattery good.
Check fluid, recharge,
Use the electric starter.
Check if there is fuel
Enough fuel.
No fuel.Go to compression check.
Supply fuel.
in the fuel tank.
electrodes. plug and check
quickly.
slowly. check connections.Engine doesn’t start, go to battery
check.the engine. correct spark gap or replace plug.
Engine doesn’t start, ask a Yamahadealer to inspect.
Engine doesn’t start, go to compression check.
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8-3
SPECIFICATIONS
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Front150 kPa (1.50 kg/cm2, 1.50 bar)
Rear150 kPa (1.50 kg/cm2, 1.50 bar)
80 kg load ~ Maximum
load*
Front
150 kPa (1.50 kg/cm2, 1.50 bar)
Rear175 kPa (1.75 kg/cm2, 1.75 bar)
Off-road riding
Front
125 kPa (1.25 kg/cm2, 1.25 bar)
Rear125 kPa (1.25 kg/cm2, 1.25 bar)
*Load is total weight of cargo, rider, passenger and accessories.
Wheels
Front
Type Spoke wheel
Size 2.50 ´18
Rear
Type Spoke wheel
Size 14M/C ´MT4.50
Brakes
Front
Type Single disc brake
Operation Right hand operation
Fluid DOT 3 or DOT 4Rear
Type Drum brake
Operation Right foot operation
Suspension
Front
Type Telescopic fork
Rear
Type Swingarm (Monocross
suspension)
Shock absorber
Front Coil spring/oil damper
Rear Coil-gas spring/oil damper
Wheel travel
Front 160 mm
Rear 150 mm
Electrical
Ignition system C.D.I.
Charging system
Type C.D.I. magneto
Standard output 12 V, 11 A @ 5,000 rpm
Battery
Type GM7CZ-3D
Voltage, capacity 12 V, 7 AH
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