stop start YAMAHA TW125 2000 Owners Manual

3-3
INSTRUMENT AND CONTROL FUNCTIONS
1
2
3
4
5
6
7
8
9
EAU00127Turn signal switch
To signal a right-hand turn, push
the switch to “6”. To signal a left-
hand turn, push the switch to
“4”. Once the switch is released
it will return to the center position.
To cancel the signal, push the
switch in after it has returned to
the center position.
EAU00129
Horn switch “*”
Press the switch to sound the horn.
EAU00134Lights switch
Turning the light switch to “
'”,
turns on the auxiliary light, meter
lights and taillight. Turning the
light switch to “:” turns the head-
light on also.
EAU00143Start switch “,“
The starter motor cranks the
engine when pushing the start
switch.
EC000005
cC
See starting instructions prior to
starting the engine.
1
2
EAU00138Engine stop switch
The engine stop switch is a safety
device for use in an emergency
such as when the motorcycle over-
turns or if trouble occurs in the
throttle system. Turn the switch to
“#” to start the engine.
In case of emergency, turn the
switch to “$” to stop the engine.
1. Engine stop switch
2. Start switch “,”
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 13

3-12
INSTRUMENT AND CONTROL FUNCTIONS
1
2
3
4
5
6
7
8
9
EAU00331Sidestand/clutch switch
operation check
Check the operation of the side-
stand switch and clutch switch
against the information below.
EW000045
w
If improper operation is noted,
consult a Yamaha dealer immedi-
ately.
SIDESTAND IS DOWN.
ENGINE WILL STALL.
SIDESTAND SWITCH IS OK.
TURN THE MAIN SWITCH TO “ON”
AND THE ENGINE STOP SWITCH TO
“#”.
TRANSMISSION IS IN GEAR AND
SIDESTAND IS UP.
PULL IN CLUTCH LEVER AND
PUSH THE START SWITCH.
ENGINE WILL START.
CLUTCH SWITCH IS OK.
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 22

5-2
OPERATION AND IMPORTANT RIDING POINTS
1
2
3
4
5
6
7
8
9
IF THE TRANSMISSION IS IN NEUTRAL AND
THE SIDESTAND IS DOWN, PUSH START
SWITCH.
THE ENGINE WILL START.
RETRACT THE SIDESTAND AND PUT THE
TRANSMISSION IN GEAR.
THE MOTORCYCLE CAN BE RIDDEN.THE MOTORCYCLE CAN BE RIDDEN.
IF THE TRANSMISSION IS IN GEAR AND THE
SIDESTAND IS UP, PULL IN THE CLUTCH
LEVER AND PUSH THE START SWITCH.
TURN THE MAIN SWITCH TO “ON” AND
THE ENGINE STOP SWITCH TO “#”.
THE ENGINE WILL START.
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 26

5-3
OPERATION AND IMPORTANT RIDING POINTS
1
2
3
4
5
6
7
8
9 1. Turn the fuel cock to “ON”.
2. Turn the main switch to “ON”
and the engine stop switch to
“#”.
3. Shift the transmission into
neutral.
NOTE:
When the transmission is in neu-
tral, the neutral indicator light
should be on. If the light does not
come on, ask a Yamaha dealer to
inspect it.
4. Turn on the starter (choke) and
completely close the throttle
grip.5. Start the engine by pushing
the start switch.
NOTE:
If the engine fails to start, release
the start switch, wait a few sec-
onds, then try again. Each attempt
should be as short as possible to
preserve the battery. Do not crank
the engine more than 10 seconds
on any one attempt.
6. After starting the engine, move
the starter (choke) to the
halfway position.
NOTE:
For maximum engine life, never
accelerate hard with a cold engine!
7. After warming up the engine,
turn off the starter (choke)
completely.
NOTE:
The engine is warm when it
responds normally to the throttle
with the starter (choke) turned off.
ONFUEL
RES
OFF
ON
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 27

6-12
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
5
6
7
8
9
1
2
2
EAU01501*Air filter
The air filter should be cleaned at
the specified intervals. It should be
cleaned more frequently when rid-
ing in unusually wet or dusty
areas.
Air filter element cleaning
1. Remove panel A. (See page
6-6 for removal and installa-
tion procedures.)
2. Remove the air filter case fit-
ting screws and the filter case
cover.
1. Air filter case cover
2. Screw (´4)EC000066
cC
8Do not put in any chemical
additives. Engine oil also lubri-
cates the clutch and additives
could cause clutch slippage.
8Be sure no foreign material
enters the crankcase.
10. Start the engine and warm up
for a few minutes. While
warming up, check for oil leak-
age. If oil leakage is found,
stop the engine immediately
and check for the cause.
EC000071
cC
Before reinstalling the oil drain
bolt, do not forget to install the O-
ring, compression spring, and oil
strainer in position.
9. Fill the engine with oil. Install
the oil filler cap and tighten. Tightening torque:
Drain bolt:
43 Nm (4.3 m·kg)
Filter cover screw:
7.0 Nm (0.7 m·kg)
Drain bolt (filter cover):
10 Nm (1.0 m·kg)
Recommended oil:
See page 8-1.
Total amount:
1.3 L
Periodic oil change:
1.0 L
With oil filter replacement:
1.1 L
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 42

6-14
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
5
6
7
8
9
EAU00629Carburetor adjustment
The carburetor is a vital part of the
engine and requires very sophisti-
cated adjustment. Most adjust-
ments should be left to a Yamaha
dealer who has the professional
knowledge and experience to do
so. However, the following may be
serviced by the owner as part of
routine maintenance.
EC000094
cC
The carburetor was set at the
Yamaha factory after many tests. If
the settings are changed, poor
engine performance and damage
may result.
EAU01168Idle speed adjustment
NOTE:
A diagnostic tachometer must be
used for this procedure.
1. Attach the tachometer. Start
the engine and warm it up for
a few minutes at approximate-
ly 1,000 to 2,000 r/min.
Occasionally rev the engine to
4,000 to 5,000 r/min. The
engine is warm when it quickly
responds to the throttle.2. Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw in direction ato
increase engine speed and in
direction bto decrease engine
speed.
NOTE:
If the specified idle speed cannot
be obtained by performing the
above adjustment, consult a
Yamaha dealer.
1. Throttle stop screw
1
ab
Standard idle speed:
1,300 ~ 1,500 r/min
5EK-9-E1 (TW125)<3.1> 4/6/0 11:50 PM Page 44