engine YAMAHA TW200 2003 User Guide

5-2
OPERATION AND IMPORTANT RIDING POINTS
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IF TRANSMISSION IS IN NEUTRAL
AND SIDESTAND IS DOWN,
PUSH START SWITCH OR
KICK THE KICK STARTER.
ENGINE WILL START.
RETRACT SIDESTAND AND PUT
TRANSMISSION IN GEAR.
MOTORCYCLE CAN BE RIDDEN.MOTORCYCLE CAN BE RIDDEN.
IF TRANSMISSION IS IN GEAR AND
SIDESTAND IS UP,
PULL IN CLUTCH LEVER AND PUSH START
SWITCH OR KICK THE KICK STARTER.
ENGINE WILL START.
TURN THE MAIN SWITCH TO “ON” AND
THE ENGINE STOP SWITCH TO “RUN”
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OPERATION AND IMPORTANT RIDING POINTS
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91. Turn the fuel cock to “ON”.
2. Turn the main switch to ON”
and the engine stop switch to
“RUN”.
3. Shift 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 and com-
pletely close the throttle grip.
5. Start the engine by pushing
the start switch or by kicking
the kick starter.
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. If the engine
does not start with the starter
motor, kick the kick starter to start
the engine.
6. After starting the engine, move
the starter to the halfway posi-
tion.
NOTE:
For maximum engine life, always
warm up the engine before starting
off. Never accelerate hard with a
cold engine.
7. After warming up the engine,
turn off the starter completely.
NOTE:
The engine is warm when it
responds normally to the throttle
with the starter turned off.
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5-4
OPERATION AND IMPORTANT RIDING POINTS
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EAU00423
Shifting
The transmission lets you control
the amount of power you have
available at a given speed for start-
ing, accelerating, climbing hills,
etc. The use of the shift pedal is
shown in the illustration.
To shift into neutral, depress the
shift pedal repeatedly until it reach-
es the end of its travel, then raise
the pedal slightly.
EC000048
cC
1. Do not coast for long periods
with the engine off, and do
not tow the motorcycle a long
distance. Even with gears in
neutral, the transmission is
only properly lubricated when
the engine is running.
Inadequate lubrication may
damage the transmission.
2. Always use the clutch when
changing gears. The engine,
transmission, and driveline are
not designed to withstand the
shock of forced shifting and
can be damaged by shifting
without using the clutch.
1
N5
4
3
2
1
N. Neutral
1. Shift pedal
EAU01258Starting a warm engine
The starter (choke) is not required
when the engine is warm.
EC000046
cC
See the “Engine break-in” section
prior to operating the motorcycle
for the first time.
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5-5
OPERATION AND IMPORTANT RIDING POINTS
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94. 1,000 km and beyond:
Avoid prolonged full-throttle
operation. Vary speed occa-
sionally.
EC000049
cC
If any engine trouble should occur
during the break-in period, consult
a Yamaha dealer immediately.
EAU00436Engine break-in
There is never a more important
period in the life of your motorcy-
cle than the period between zero
and 1,000 km. For this reason we
ask that you carefully read the fol-
lowing material. Because the
engine is brand new, you must not
put an excessive load on it for the
first 1,000 km. The various parts in
the engine wear and polish them-
selves to the correct operating
clearances. During this period, pro-
longed full throttle operation, or
any condition which might result in
excessive heating of the engine,
must be avoided.
EAU00446
1. 0 ~ 150 km:
Avoid operation above 1/3
throttle. Stop the engine and
let it cool for 5 to 10 minutes
after every hour of operation.
Vary the speed of the motorcy-
cle from time to time. Do not
operate it at one set throttle
position.
2. 150 ~ 500 km:
Avoid prolonged operation
above 1/2 throttle. Rev the
motorcycle freely through the
gears, but do not use full throt-
tle at any time.
3. 500 ~ 1,000 km:
Avoid cruising speeds in
excess of 3/4 throttle.
EC000057
cC
After 1,000 km of operation, be
sure to replace the engine oil and
clean the oil filter element and oil
strainer.
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5-6
OPERATION AND IMPORTANT RIDING POINTS
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EAU00457Parking
When parking the motorcycle, stop
the engine and remove the ignition
key. Turn the fuel cock to “OFF”
whenever stopping the engine.
EW000058
w
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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6-4
PERIODIC MAINTENANCE AND MINOR REPAIR
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EVERY
6,000 km 12,000 km
No. ITEM CHECKS AND MAINTENANCE JOBSInitial or or
(1,000 km) 6 months 12 months
(Whichever (Whichever
comes first) comes first)
12 * Wheel bearings9Check bearing for looseness or damage.
√√
9Replace if necessary.
9Check swingarm pivoting point for play.
13 * Swingarm9Correct if necessary. √√
9Lubricate with lithium soap base grease.
9Check chain slack.
14 Drive chain9
Adjust if necessary. Make sure that the rear wheel is properly aligned.Every 500 km and after washing
9Clean and lubricate.the motorcycle or riding in the rain
9Check bearing play and steering for roughness.
15 * Steering bearings9Correct accordingly.
√√
9Lubricate with lithium soap grease every 24,000 km or
24 months (whichever comes first).
16 * Chassis fasteners9
Make sure that all nuts, bolts and screws are properly tightened.√√9Tighten if necessary.
17 Sidestand9Check operation.
√√
9Lubricate and repair if necessary.
18 Sidestand switch9Check operation.
√√√
9Replace if necessary.
19 * Front fork9Check operation and for oil leakage.
√√
9Correct accordingly.
20 *Rear shock absorber 9Check operation and shock absorber for oil leakage.
√√
assembly9Replace shock absorber assembly if necessary.
Rear shock absorber9Check operation.
21 * assembly pivoting9Lubricate with lithium soap base grease every 24,000 km or√√
points24 months (whichever comes first).
22 * Carburetor9Check engine idling speed and starter operation.
√√√
9Adjust if necessary.
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*: Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer.EAU00479
NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
EVERY
6,000 km 12,000 km
No. ITEM CHECKS AND MAINTENANCE JOBSInitial or or
(1,000 km) 6 months 12 months
(Whichever (Whichever
comes first) comes first)
9Check oil level and vehicle for oil leakage.
23 Engine oil9Correct if necessary.√√√
9Change. (Warm engine before draining.)
24Engine oil filter element9Clean or replace if necessary.√√
25
*
Engine oil strainer9Clean or replace if necessary.√√
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PERIODIC MAINTENANCE AND MINOR REPAIR
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1. Panel A
EAU00494Panel A
To remove:
Pull outward on the areas shown.
To install:
Place the panel in its original posi-
tion.
1
EAU00495Spark plug inspection
The spark plug is an important
engine component and is easy to
inspect. The condition of the spark
plug can indicate the condition of
the engine. The ideal color on the
white insulator around the center
electrode 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 period-
ically remove and inspect the spark
plug because heat and deposits
will cause the spark plug to slowly
1. Spark plug gap
12
1. Panel B
2. Screw (×2)
EAU01345Panel B
To remove:
Remove the screws and pull out-
ward on the areas shown.
To install:
Place the panel in the original posi-
tion and install the screws.
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6-8
PERIODIC MAINTENANCE AND MINOR REPAIR
6 break down and erode. If electrode
erosion becomes excessive, or if
carbon and other deposits are
excessive, you should replace the
spark plug with the specified plug.
Before installing the spark plug,
measure the electrode gap with a
wire thickness gauge; adjust the
gap to specification as necessary.
When installing the plug, always
clean the gasket surface and use a
new gasket. Wipe off any grime
from the threads and tighten the
spark plug to the specified torque.Specified spark plug:
DR8EA (NGK) or
X24ESR-U (DENSO)Spark plug gap:
0.6 ~ 0.7 mm
Tightening torque:
Spark plug:
17.5 Nm (1.75 m0kg)
NOTE:
If a torque wrench is not available
when you are installing a spark
plug, a good estimate of the cor-
rect torque is 1/4 to 1/2 turn past
finger tight. Have the spark plug
tightened to the specified torque as
soon as possible.EAU00517Engine oil
1. Oil level measurement
a. Place the motorcycle on a level
place and hold it in an upright
position. Warm up the engine
for several minutes.
NOTE:
Be sure the motorcycle is posi-
tioned straight up when checking
the oil level. A slight tilt toward the
side can result in false readings.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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2. Engine oil replacement
a. Warm up the engine for a few
minutes.
b. Stop the engine. Place an oil
pan under the engine and
remove the oil filler cap.
1. Oil filler cap
2
3 1
b. With the engine stopped,
check the oil level through the
level window located at the
lower part of the right side
crankcase cover.
NOTE:
Wait a few minutes until the oil
level settles before checking.
c. The oil level should be
between the maximum and
minimum marks. If the level is
low, add sufficient oil to raise
it to the proper level.
1. Level window
2. Maximum level mark
3. Minimum level mark
1
c. Remove the drain plug and
drain bolt.
1. Drain plug
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