lock YAMAHA MT-01 2007 User Guide

INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
EAU36752
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing nut, a rebound damping force ad-
justing knob and a compression
damping force adjusting screw.CAUTION:
ECA10100
Never attempt to turn an adjusting
mechanism beyond the maximum orminimum settings.
Spring preload
Adjust the spring preload as follows.
1. Loosen the locknut.2. To increase the spring preload and
thereby harden the suspension,
turn the adjusting nut in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting nut in
direction (b).
NOTE:

Use the special wrench included in
the owner’s tool kit to make the ad-
justment.


The spring preload setting is deter-
mined by measuring distance A,
shown in the illustration. The long-
er distance A is, the lower thespring preload; the shorter dis-
tance A is, the higher the spring
preload.
3. Tighten the locknut to the specified
torque.
1. Locknut
2. Spring preload adjusting nut
1. Special wrench
1. Distance A
Spring preload:
Minimum (soft):
Distance A = 155.0 mm (6.10 in)
Standard:
Distance A = 150.0 mm (5.91 in)
Maximum (hard):
Distance A = 145.0 mm (5.71 in)
Tightening torque:
Locknut:
42 Nm (4.2 m·kgf, 30 ft·lbf)
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INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
CAUTION:
ECA10120
Always tighten the locknut against
the adjusting nut, and then tightenthe locknut to the specified torque.
Rebound damping force
To increase the rebound damping force
and thereby harden the rebound damp-
ing, turn the adjusting knob in direction
(a). To decrease the rebound damping
force and thereby soften the rebound
damping, turn the adjusting knob in di-
rection (b).Compression damping force
To increase the compression damping
force and thereby harden the compres-
sion damping, turn the adjusting screw
in direction (a). To decrease the com-
pression damping force and thereby
soften the compression damping, turn
the adjusting screw in direction (b).
NOTE:
Although the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above spec-
ifications due to small differences in
production, the actual number of clicks
always represents the entire adjusting
range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify thespecifications as necessary.
WARNING
EWA10220
This shock absorber contains highly
pressurized nitrogen gas. For prop-
er handling, read and understand
the following information before
handling the shock absorber. The
1. Rebound damping force adjusting knob
Rebound damping setting:
Minimum (soft):
20 click(s) in direction (b)*
Standard:
12 click(s) in direction (b)*
Maximum (hard):
3 click(s) in direction (b)*
* With the adjusting knob fully turned
in direction (a)1. Compression damping force adjusting screw
Compression damping setting:
Minimum (soft):
12 click(s) in direction (b)*
Standard:
10 click(s) in direction (b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6
EAU42860
Checking the brake fluid level Front brake
Rear brake
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.
NOTE:The rear brake fluid reservoir is locatedunder the seat. (See page 3-14.)
Observe these precautions:

When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.


Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.


Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.


Be careful that water does not en-
ter the brake fluid reservoir when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.


Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.


As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
1. Minimum level mark
Recommended brake fluid:
DOT 4
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EAU22750
Changing the brake and
clutch fluids Have a Yamaha dealer change the
brake and clutch fluids at the intervals
specified in the NOTE after the periodic
maintenance and lubrication chart. In
addition, have the oil seals of the brake
and clutch master cylinders and cali-
pers as well as the brake and clutch
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.

Oil seals: Replace every two
years.


Brake and clutch hoses: Replace
every four years.
EAU22760
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22772
To check the drive chain slack
1. Place the motorcycle on the side-
stand.NOTE:When checking and adjusting the drive
chain slack, there should be no weighton the motorcycle.
2. Shift the transmission into the neu-
tral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain slack
as shown.4. If the drive chain slack is incorrect,
adjust it as follows.
EAU34311
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
Drive chain slack:
40.0–50.0 mm (1.57–1.97 in)
1. Drive chain slack
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
62. To tighten the drive chain, turn the
adjusting bolt on each side of the
swingarm in direction (a). To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction (b), and then
push the rear wheel forward.
NOTE:Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-tion for proper wheel alignment.
CAUTION:
ECA10570
Improper drive chain slack will over-
load the engine as well as other vital
parts of the motorcycle and can lead
to chain slippage or breakage. To
prevent this from occurring, keep
the drive chain slack within thespecified limits.
3. Tighten the locknuts, then the axle
nut to their specified torques.
EAU23022
Cleaning and lubricating the
drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.CAUTION:
ECA10581
The drive chain must be lubricated
after washing the motorcycle andriding in the rain.
1. Clean the drive chain with kero-
sene and a small soft brush.CAUTION:
ECA11120
To prevent damaging the O-rings, do
not clean the drive chain with steam
cleaners, high-pressure washers orinappropriate solvents.
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Alignment marks
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf, 11 ft·lbf)
Axle nut:
150 Nm (15.0 m·kgf, 110 ft·lbf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-25
6
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.
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.
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
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.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.
1. Low beam headlight bulb
2. High beam headlight bulb
1. Bolt
1. Headlight bulb holder cover
1. Headlight coupler
2. Headlight bulb holder
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
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.
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.
b. Install the bulb by turning it
clockwise.CAUTION:
ECA10650
Take care not to damage the follow-
ing parts:
1. Do not touch the glass part of the bulb.
1. Headlight coupler
2. Headlight bulb
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU24202
Replacing a turn signal light
bulb 1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.CAUTION:
ECA11190
Do not overtighten the screw, other-wise the lens may break.
EAU36810
Replacing the license plate
light bulb 1. Remove the license plate light cov-
er by removing the screws.
2. Remove the license plate light lens
by removing the screws.3. Remove the defective bulb by pull-
ing it out from the socket.
4. Insert a new bulb into the socket.
5. Install the license plate light lens
by installing the screws.
1. Screw
1. Screw
2. License plate light cover
1. Screw
2. License plate light lens
1. License plate light bulb
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6 3. Remove the socket (together with
the bulb) by turning it counter-
clockwise.
4. Remove the defective bulb by pull-
ing it out.5. Insert a new bulb into the socket.
6. Install the socket (together with the
bulb) by turning it clockwise.
7. Install the headlight unit side cover
and the headlight unit side cover
bracket by installing the screws.
8. Install the headlight unit by install-
ing the bolts.
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. 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.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
1. Screw
2. Headlight unit side cover bracket
3. Headlight unit side cover
1. Auxiliary light bulb socket
1. Auxiliary light bulb
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