engine YAMAHA T135 2006 User Guide

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15950
WARNING
EWA10270


Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible lossof control.
EAU37640
Starting and warming up a
cold engine 1. Turn the key to “ON”.
2. Shift the transmission into the neu-
tral position.NOTE:
When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-cuit.
3. Place the vehicle on the center-
stand.
WARNING
EWA14200
Before starting the engine, make
sure the transmission is in neutral
and that the vehicle is placed on thecenterstand.
4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-7.)
5. Start the engine by pushing the
start switch or by pushing the kick-
starter lever down.
NOTE:If the engine fails to start by pushing the
start switch, release the switch, wait a
few seconds, and then try again. Each
starting 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, try usingthe kickstarter.CAUTION:
ECA15170
The coolant temperature warning
light should come on when the key
is turned to “ON”, and then go off af-
ter a few seconds. If the coolant tem-
perature warning light comes on
after starting, immediately stop the
engine, and have a Yamaha dealercheck the electrical circuit.
6. After starting the engine, move the
starter (choke) back halfway.
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OPERATION AND IMPORTANT RIDING POINTS
5-2
5
CAUTION:
ECA11130
For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when theengine is cold!
7. When the engine is warm, turn the
starter (choke) off.NOTE:The engine is warm when it responds
normally to the throttle with the starter(choke) turned off.
EAU16640
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
EAU37550
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc. When shifting gears, fully return the
throttle grip. The use of the shift pedal
is shown in the illustration.NOTE:The transmission cannot be shifted
from 4th gear to neutral when the en-gine is running.CAUTION:
ECA15180


Make sure that the transmission
is completely shifted into gear.
1. Shift pedal
2. Neutral position
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OPERATION AND IMPORTANT RIDING POINTS
5-3
5


Be sure to fully close the throttle
grip when shifting.


Make sure the neutral indicator
light comes on when the trans-
mission is in the neutral posi-tion.
EAU16800
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Turn the starter (choke) off as
soon as possible.


Shift up swiftly, and avoid high en-
gine speeds during acceleration.


Do not rev the engine while shifting
down, and avoid high engine
speeds with no load on the engine.


Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
EAU16830
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAU37791
0–150 km (0–90 mi)
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OPERATION AND IMPORTANT RIDING POINTS
5-4
5Avoid prolonged operation above 1/3
throttle.
After every hour of operation, stop the
engine, and then let it cool for five to ten
minutes.
Vary the engine speed from time to
time. Do not operate the engine at one
set throttle position.
150–500 km (90–300 mi)
Avoid prolonged operation above 1/2
throttle.
Rev the engine freely through the
gears, but do not use full throttle at any
time.500–1000 km (300–600 mi)
Avoid prolonged operation above 3/4
throttle.
1000 km (600 mi) and beyond
Avoid prolonged full-throttle operation.
Vary the engine speed occasionally.
CAUTION:
ECA10361


After 1000 km (600 mi) of opera-
tion, the engine oil must be
changed, the oil filter cartridge
or element replaced, and the oil
strainer cleaned.


If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-cle.
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OPERATION AND IMPORTANT RIDING POINTS
5-5
5
EAU17212
Parking When parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10310


Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them.


Do not park on a slope or on soft
ground, otherwise the vehiclemay overturn.
CAUTION:
ECA10380
Never park in an area where there
are fire hazards such as grass orother flammable materials.
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OPERATION AND IMPORTANT RIDING POINTS
5-6
5
EAU37601
General note Much can be gained from the correct use and maintenance of a motorcycle.
1. THE CUSTOMERS CAN USE THE FULLEST
POTENTIAL OF YAMAHA MOTORCYCLES2. A MOTORCYCLE CAN KEEP ITS PERFORMANCE
CAPABILITY FOR A LONGER TIME
Comparison of wear on engine parts
(piston, piston ring, cylinder, etc.)
100%
Perfect operative
condition
Without
maintenance
Distance
covered (km)Engine overhaul, cylinder
boring, piston ring change, etc. With maintenance
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
9*WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√√√√
10*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√ √
11*Wheel bearingsCheck bearing for looseness or damage.√√√√
12*SwingarmCheck operation and for excessive play.√√√√
Lubricate with lithium-soap-based grease. Every 24000 km
13 Drive chainCheck chain slack, alignment and condition.
Adjust and thoroughly lubricate chain with engine oil.Every 500 km and after washing the motorcycle or
riding in the rain
14*Steering bearingsCheck bearing play and steering for roughness.√√√√√
Lubricate with lithium-soap-based grease. Every 24000 km
15*Chassis fastenersMake sure that all nuts, bolts and screws are properly
tightened.√√√√ √
16 Sidestand, centerstandCheck operation.
Lubricate.√√√√ √
17*Front forkCheck operation and for oil leakage.√√√√
18*Shock absorber assem-
blyCheck operation and shock absorber for oil leakage.√√√√
19*CarburetorCheck starter (choke) operation.
Adjust engine idling speed.√√√√√ √
20 Engine oilChange.
Check oil level and vehicle for oil leakage.√√√√√ √
21 Engine oil filter elementReplace.√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 6 12 18 24
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6To install the panel
Place the panel in the original position,
and then install the screw and bolts.
EAU37560
Checking the spark plug The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
To remove the spark plug
1. Remove cowling B. (See page
6-5.)
2. Remove the resonator bolt.
3. Move the resonator away as
shown.4. Remove the spark plug cap.
5. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.1. Resonator bolt
1. Resonator
2. Spark plug cap
1. Spark plug wrench
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
To check the spark plug
1. Check that the porcelain insulator around the center electrode of the
spark plug is a medium-to-light tan
(the ideal color when the vehicle is
ridden normally).
NOTE:If the spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have aYamaha dealer check the vehicle.
2. Check the spark plug for electrode erosion and excessive carbon or
other deposits, and replace it if
necessary.
To install the spark plug 1. Measure the spark plug gap with a wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion. 2. Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
3. Install the spark plug with the spark plug wrench, and then tight-
en it to the specified torque.
NOTE:If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4 –1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-fied torque as soon as possible.
4. Install the spark plug cap.
5. Place the resonator in the original position, and then tighten the bolt
to the specified torque.
6. Install the cowling.
Specified spark plug: NGK/CPR8EA-9/DENSO U24EPR-9
1. Spark plug gap
Spark plug gap: 0.8 –0.9 mm (0.031 –0.035 in)
Tightening torque: Spark plug:12.5 Nm (1.25 m ·kgf, 9.0 ft ·lbf)
Tightening torque:
Resonator bolt: 10 Nm (1.0 m ·kgf, 7.2 ft ·lbf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU37570
Engine oil and oil filter
element The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the vehicle on the center-
stand.NOTE:
Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in afalse reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
NOTE:
The engine oil should be between theminimum and maximum level marks.4. If the engine oil is at or below the
minimum level mark, add sufficient
oil of the recommended type to
raise it to the correct level.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.
3. Remove the engine oil filler cap
and drain bolt along with the O-
ring, compression spring, and en-
gine oil strainer, to drain the oil
from the crankcase.1. Engine oil filler cap
1. Dipstick
2. Maximum level mark
3. Minimum level mark
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