2005 YAMAHA MT-01 light

OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU16810
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

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).
EAU16841
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 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
1600 km (1000 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.
EAU17081
0–1000 km (0–600 mi)
Avoid prolonged operation above 2800
r/min.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 3300
r/min.
CAUTION:
ECA10301
After 1000 km (600 mi) of operation,
the engine oil must be changed and
the oil filter cartridge or element re-placed.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.CAUTION:
ECA10310


Keep the engine speed out of
the tachometer red zone.


If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-cle.
NOTE:During and after the engine break-in
period, the exhaust heat may cause
discoloration of the exhaust pipe, butthis is normal.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
EAU36771
NOTE:

Air filter
This model’s air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with com-
pressed air to avoid damaging it.
The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas.


Hydraulic brake and clutch service
Regularly check and, if necessary, correct the brake fluid and clutch fluid levels.
Every two years replace the internal components of the brake master cylinders and calipers as well as clutch master
and release cylinders, and change the brake and clutch fluids.Replace the brake and clutch hoses every four years and if cracked or damaged.
24*Front and rear brake
switchesCheck operation.√√√√√ √
25Moving parts and ca-
blesLubricate.√√√√ √
26*Throttle grip housing
and cableCheck operation and free play.
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.√√√√ √
27*Muffler and exhaust
pipeCheck the screw clamp for looseness.√√√√√
28*Lights, signals and
switchesCheck operation.
Adjust headlight beam.√√√√√ √ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 10203040U5YUE0E0.book Page 4 Monday, November 15, 2004 8:48 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6
EAU19641
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally),
and all spark plugs installed in the en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be defective. Do
not attempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
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.
Specified spark plug:
NGK/DPR7EA-9
DENSO/X22EPR-U91. Spark plug gapSpark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 13 ft·lbf)
U5YUE0E0.book Page 6 Monday, November 15, 2004 8:48 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
EAU36802
Engine oil and oil filter
cartridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.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 until
the engine oil has reached a nor-
mal temperature of 60 °C (140 °F),
let it continue to idle for ten sec-
onds, and then turn the engine off.
NOTE:To achieve the proper engine oil tem-
perature for an accurate oil level read-
ing, the engine must have first
completely cooled down, and then
warmed up again for several minutes tonormal operating temperature.
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.
NOTE:When adding oil, be careful not to over-
fill the engine oil tank; the oil level rises
faster starting from the half level portionon the dipstick.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
1. Engine oil filler cap
1. Maximum level mark
2. Minimum level mark
3. Dipstick
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EAU22270
Adjusting the rear brake light
switch The rear brake light switch, which is ac-
tivated by the brake pedal, is properly
adjusted when the brake light comes
on just before braking takes effect. If
necessary, adjust the brake light switch
as follows.
Turn the adjusting nut while holding the
rear brake light switch in place. To
make the brake light come on earlier,
turn the adjusting nut in direction (a). To
make the brake light come on later, turn
the adjusting nut in direction (b).
EAU22390
Checking the front and rear
brake pads The front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU36890
Front brake pads
Each front brake pad is provided with
wear indicators, which allows you to
check the brake pad wear without hav-
ing to disassemble the brake. To check
the brake pad wear, check the position
of the wear indicators while applying
the brake. If a brake pad has worn tothe point that a wear indicator almost
touches the brake disc, have a Yamaha
dealer replace the brake pads as a set.
EAU36720
Rear brake pads
Each rear brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that the wear
indicator grooves have almost disap-
peared, have a Yamaha dealer replace
the brake pads as a set.
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1. Brake pad wear indicator
1. Brake pad wear indicator groove
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-25
6
EAU23624
Replacing the fuses
The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located under the seat. (See
page 3-14.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
1. Main fuse
2. Fuel injection system fuse
3. Fuel injection system spare fuse
4. Fuse box
1. Fuse box
2. Headlight fuse
3. Signaling system fuse
4. Ignition fuse
5. Muffler cover fan fuse
6. Backup fuse (for odometer, clock and immo-
bilizer system)
7. Auto-decompression fuse
8. ECU fuse
9. Parking lighting fuse
10.Spare fuse
Specified fuses:
Main fuse:
50.0 A
Headlight fuse:
15.0 A
Ignition fuse:
25.0 A
Signaling system fuse:
10.0 A
Parking lighting fuse:
10.0 A
Muffler cover fan fuse:
15.0 A
ECU fuse:
10.0 A
Backup fuse:
10.0 A
Auto-decompression fuse:
15.0 A
Fuel injection system fuse:
15.0 A
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
6
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly afire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU36820
Replacing a headlight bulb This model is equipped with quartz bulb
headlights. If a headlight bulb burns
out, replace it as follows.
To replace a headlight bulb
1. Remove the headlight unit by re-
moving the bolts on each side.To replace the high beam head-
light bulba. Remove the headlight bulb
holder cover by turning it coun-
terclockwise.
1. Low beam headlight bulb
2. High beam headlight bulb
1. Bolt
1. Headlight bulb cover
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6 b. Disconnect the headlight cou-
pler, and then unhook the
headlight bulb holder.
c. Remove the defective bulb.
WARNING
EWA10790
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooleddown.
d. Place a new headlight bulb into
position, and then secure it with
the bulb holder.
CAUTION:
ECA10650
Take care not to damage the follow-
ing parts:

Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the bulb, and the bulb life will
be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.


Headlight lens
Do not affix any type of tinted
film or stickers to the headlight
lens.
Do not use a headlight bulb of awattage higher than specified.e. Connect the coupler, and then
install the headlight bulb holder
cover by turning it clockwise.
To replace the low beam headlight
bulba. Disconnect the headlight cou-
pler, and then remove the de-
fective bulb by turning it
counterclockwise.
1. Headlight coupler
2. Headlight bulb holder
1. Do not touch the glass part of the bulb.
U5YUE0E0.book Page 27 Monday, November 15, 2004 8:48 AM