1998 YAMAHA TW200 engine

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PERIODIC MAINTENANCE AND MINOR REPAIR
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9 To check the chain slack the motor-
cycle must be held straight up with
both wheels on the ground and
without rider. Check the slack at
the position shown in the illustra-
tion. Normal slack is approximately
30 ~ 40 mm. If the slack exceeds 40
mm, adjust.
EAU01302
Drive chain slack adjustment
1. Loosen the rear brake adjust-
ing nut.
2. Remove the cotter pin from
the axle nut.
3. Loosen the axle nut.
4. Turn both left and right chain
adjusting plates the same
amount. Make sure that they
are in the same position for
proper wheel alignment.
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3 4
1. Adjusting nut
2. Axle nut
3. Cotter pin
4. Chain adjusting plate
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Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits.
5. After adjusting, be sure to
tighten the axle nut to the
specified torque.
Tightening torque:
Axle nut:
90 Nm (9.0 m0kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00772
Cable inspection and
lubrication
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Damage to the outer housing of
cables may lead to internal rusting
and interfere with the cable move-
ment. Replace damaged cables as
soon as possible to prevent unsafe
conditions.
Lubricate the cables and cable
ends. If a cable does not operate
smoothly, ask a Yamaha dealer to
replace it.
Recommended lubricant:
Same as engine oil
EAU00773
Throttle cable and grip
lubrication
The throttle twist grip assembly
should be greased at the time that
the cable is lubricated, since the
grip must be removed to get at the
end of the throttle cable. After
removing the screws, hold the end
of the cable up in the air and put in
several drops of lubricant. With the
throttle grip disassembled, coat the
metal surface of the grip assembly
with a suitable all-purpose grease.
EAU00776
Brake and shift pedal
lubrication
Lubricate the pivoting parts.
Recommended lubricant:
Same as engine oil
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00778
Brake and clutch lever
lubrication
Lubricate the pivoting parts.
EAU00785
Sidestand lubrication
Lubricate the sidestand pivoting
point and metal-to-metal contact
surfaces. Check that the sidestand
moves up and down smoothly.
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If the sidestand does not move
smoothly, consult a Yamaha deal-
er.
Recommended lubricant:
Same as engine oil
Recommended lubricant:
Same as engine oil
EAU00791
Rear suspension lubrication
Lubricate the pivoting parts.
Recommended lubricant:
Lithium soap base grease
5FY-28199-EX (TW200) 4/16/02 5:38 PM Page 54

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EAU00793Front fork inspection
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Securely support the motorcycle
so there is no danger of it falling
over.
1. Visual check
Check for scratches or damage
on the inner tube and exces-
sive oil leakage from the front
fork.2. Operation check
Place the motorcycle on a level
place.
a. Hold the motorcycle in an
upright position and apply the
front brake.
b. Push down hard on the han-
dlebars several times and
check if the fork rebounds
smoothly.
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If any damage or unsmooth move-
ment is found with the front fork,
consult a Yamaha dealer.
EAU00794Steering inspection
Periodically inspect the condition
of the steering. Worn out or loose
steering bearings may be danger-
ous. Place a stand under the
engine to raise the front wheel off
the ground. Hold the lower end of
the front forks and try to move
them forward and backward. If any
free play can be felt, ask a Yamaha
dealer to inspect and adjust the
steering. Inspection is easier if the
front wheel is removed.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00862
Supporting the motorcycle
Since the Yamaha TW200 has no
centerstand, follow these precau-
tions when removing the front and
rear wheel or performing other
maintenance requiring the motor-
cycle to stand upright.
Front wheel service:
To stabilize the rear of the motor-
cycle, either use a motorcycle
stand or place a motorcycle jack
under the frame in front of the rear
wheel to prevent it from moving
from side to side. Then use a
motorcycle stand to elevate the
front wheel off of the ground.
Rear wheel service:
Use a motorcycle stand or motor-
cycle jack to elevate the motorcycle
so the rear wheel is off the ground.
Alternatively, two jacks can be
placed under the frame or
swingarm.Check that the motorcycle is in a
stable and level position before
starting any maintenance. A strong
wooden box can be placed under
the engine for added stability.
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EAU00908
Front wheel removalEW000122
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8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Remove the clip holding the
speedometer cable in the
speedometer gear housing.
Then remove the speedometer
cable by pulling it outward.
1. Speedometer cable
2. Axle nut
3. Cotter pin
4. Clip
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9 2. Loosen the brake cable free
play adjusting nuts. Remove
the brake cable from the han-
dlebar lever holder and then
from the front wheel hub.
3. Remove the cotter pin and
loosen the axle nut.
4. Elevate the front wheel by
placing a suitable stand under
the engine.
5. Remove the axle nut and
wheel axle.3. Make sure the axle nut is prop-
erly torqued, and a new cotter
pin is installed.
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Always use a new cotter pin.
4. Adjust the free play in the
brake lever. Axle holder nut torque:
90 Nm (9.0 m0kg)EAU00927
Front wheel installation
When installing the front wheel,
reverse the removal procedure.
Pay attention to the following
points:
1. Make sure the wheel hub and
the brake shoe plate assembly
are installed with the projec-
tions meshed into the slots.
2. Make sure the slot in the brake
shoe plate fits over the stopper
on the front fork outer tube.
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EAU01304
Rear wheel removalEW000122
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8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Remove the brake adjusting
nut and brake rod from the
brake cam lever.
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1. Adjusting nut
2. Brake rod
3. Axle nut
4. Cotter pin
5. Chain adjusting plate
2. Remove the axle nut cotter pin
and loosen the axle nut.
3. Elevate the rear wheel by plac-
ing a suitable stand under the
engine.
4. Remove the axle nut.
5. Push the wheel forward and
remove the drive chain.
6. Pull out the axle and remove
the rear wheel assembly by
pulling it backwards.EAU01308
Rear wheel installation
1. Install the wheel assembly and
insert the axle from the left-
hand side. Be sure that the
chain adjusting plates are
installed with the punched side
outward and the slot in the
brake shoe plate is fit over the
stopper on the swingarm.
2. Install and adjust the drive
chain. (See page 6-22 for
details about adjusting the
drive chain slack.)
3. Install the axle nut and let the
motorcycle down.
4. Tighten the axle nut to the
specified torque and install the
axle nut cotter pin.
Tightening torque:
Axle nut:
90 Nm (9.0 m0kg)
5FY-28199-EX (TW200) 4/16/02 5:38 PM Page 62

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EAU01260
Troubleshooting 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 electric starter.
Remove spark
There is compression.
Go to ignition check.
No compression.
Ask a Yamaha dealer to inspect.
Wet
DryWipe clean with dry cloth and correct
Open the throttle half-way and start
Ask a Yamaha dealer to inspect.
Check if there is fuel
Enough fuel
No fuelGo to compression check.
Supply fuel.
in the fuel tank
electrode. plugs and check
Engine doesn’t start, go to battery
check. the engine. spark plug gap or replace spark plugs.
Engine turns over
Engine turns overBattery good.
Check fluid, recharge,
quickly.
slowly. check connections.Engine doesn’t start, ask aYamaha dealer to inspect.
Engine doesn’t start, go to compression check.
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