brake YAMAHA MT-09 2021 User Guide

For your safety – pre-operation checks
5-2
5
Rear brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 7-19, 7-20
Clutch • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.
7-18
Throttle grip • Check for smooth rotation and automatic return. 7-25
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary. 7-24
Drive chain • Check chain slack.
• Adjust if necessary.
• Check chain condition.
• Lubricate if necessary.
7-22, 7-24
Wheels an d tires • Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
7-15, 7-17
Brake an d shift pe dals • Make sure that operation is smooth.
• Lubricate pedal pivoting points if necessary. 7-25
Brake an d clutch levers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
7-26
Si destan d • Make sure that operation is smooth.
• Lubricate pivot if necessary.
7-26
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary. —
ITEM CHECKS PAGE
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Operation and important rid ing points
6-4
6 4. After starting out, close the throt-
tle, and at the same time, quickly
pull the clutch lever in.
5. Shift the transmission into second gear. (Make sure not to shift the
transmission into the neutral posi-
tion.)
6. Open the throttle part way and gradually release the clutch lever.
7. Follow the same procedure when shifting to the next higher gear.
EAU85380
To decelerate
1. Release the throttle and apply both the front and the rear brakes
smoothly to slow the motorcycle.
2. As the vehicle decelerates, shift to a lower gear.
3. When the engine is about to stall or runs roughly, pull the clutch le-
ver in, use the brakes to slow the
motorcycle, and continue to
downshift as necessary.
4. Once the motorcycle has stopped, the transmission can be
shifted into the neutral position. The neutral indicator light should
come on and then the clutch lever
can be released.
WARNING
EWA17380

Improper brakin g can cause
loss of control or traction. Al-
ways use b oth brakes an d apply
them smoothly.
 Make sure that the motorcycle
and the en gine have sufficiently
slowe d b efore shiftin g to a low-
er gear. En gag in g a lower gear
when the vehicle or en gine
speed is too hi gh coul d make
the rear wheel lose traction or
the en gine to over-rev. This
coul d cause loss of control, an
acci dent an d injury. It coul d also
cause en gine or drive train dam-
a g e.
EAU16811
Tips for re ducin g fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
 Shift up swiftly, and avoid high en-
gine speeds during acceleration.
 Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
 Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
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Periodic maintenance an d a djustment
7-1
7
EAU17246
Periodic inspection, adjustment, and
lubrication will keep your vehicle in the
safest and most efficient condition
possible. Safety is an obligation of the
vehicle owner/operator. The most im-
portant points of vehicle inspection,
adjustment, and lubrication are ex-
plained on the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, de-
pending on the weather, terrain, geo-
graphical location, and individual use,
the maintenance intervals may need to
be shortened.
WARNING
EWA10322
Failure to properly maintain the vehi-
cle or performin g maintenance ac-
tivities incorrectly may increase
your risk of injury or death durin g
service or while usin g the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha d ealer perform
service.
WARNING
EWA15123
Turn off the en gine when performin g
maintenance unless otherwise
specified .
 A runnin g en gine has movin g
parts that can catch on body
parts or clothin g an d electrical
parts that can cause shocks or
fires.
 Runnin g the en gine while ser-
vicin g can lead to eye injury,
b urns, fire, or car bon monoxi de
poisonin g – possi bly lea din g to
d eath. See pag e 1-3 for more in-
formation a bout car bon monox-
i d e.
WARNING
EWA15461
Brake discs, calipers, drums, and
linin gs can b ecome very hot d uring
use. To avoi d possi ble burns, let
b rake components cool before
touchin g them.
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and equipped to perform these particular
services.
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Periodic maintenance an d a djustment
7-5
7
EAU71353
General maintenance an d lu brication chartNO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
1 *Dia
gnostic system
check • Perform dynamic inspection us-
ing Yamaha diagnostic tool.
• Check the error codes. √√√√√√
2 *Air filter element • Replace. Every 40000 km (24000 mi)
3Clutch • Check operation.
•Adjust. √√√√√
4 *Front brake • Check operation, fluid level, and
for fluid leakage.
• Replace brake pads if necessary. √√√√√√
5 *Rear brake • Check operation, fluid level, and
for fluid leakage.
• Replace brake pads if necessary. √√√√√√
6 *Brake hoses • Check for cracks or damage.
√√√√√
• Replace. Every 4 years
7 *Brake flui d • Change. Every 2 years
8 *Wheels • Check runout and for damage.
• Replace if necessary. √√√√
9 *Tires • Check tread depth and for dam-
age.
• Replace if necessary.
• Check air pressure.
• Correct if necessary. √√√√√
10 *Wheel bearin gs • Check bearing for looseness or
damage. √√√√
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Periodic maintenance an d a djustment
7-6
7
11 *Swin
garm pivot
b earin gs • Check operation and for exces-
sive play. √√√√
• Lubricate with lithium-soap- based grease. Every 50000 km (30000 mi)
12 Drive chain • Check chain slack, alignment and
condition.
• Adjust and lubricate chain with a special O-ring chain lubricant
thoroughly. Every 1000 km (600 mi) and after washing the motorcycle, riding in the rain or
riding in wet areas
13 *Steerin g b earin gs • Check bearing assemblies for
looseness. √√ √
• Moderately repack with lithium- soap-based grease. √√
14 *Chassis fasteners • Make sure that all nuts, bolts and
screws are properly tightened. √√√√√
15 Brake lever pivot
shaft • Lubricate with silicone grease.
√√√√√
16 Brake ped
al pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
17 Clutch lever pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
18 Shift ped
al pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
19 Si destan d • Check operation.
• Lubricate with molybdenum di-
sulfide grease. √√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
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Periodic maintenance an d a djustment
7-8
7
EAU72800
TIP 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 service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.30 *Li
ghts, si gnals an d
switches • Check operation.
• Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
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Periodic maintenance an d a djustment
7-18
7
EAU22083
A djustin g the clutch lever free
playMeasure the clutch lever free play as
shown.
Periodically check the clutch lever free
play and, if necessary, adjust it as fol-
lows.
To increase the clutch lever free play,
turn the clutch lever free play adjusting
bolt in direction (a). To decrease the
clutch lever free play, turn the adjusting
bolt in direction (b).
TIPIf the specified free play cannot be ob-
tained as described above or if the
clutch does not operate correctly, have
a Yamaha dealer check the internal
clutch mechanism.
EAU37914
Checkin g the brake lever free
playThere should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
WARNING
EWA14212
A soft or spon gy feelin g in the b rake
lever can in dicate the presence of
air in the hy draulic system. If there is
air in the hy draulic system, have a
Yamaha dealer blee d the system be-
fore operatin g the vehicle. Air in the
hy draulic system will diminish the
1. Clutch lever free play adjusting bolt
2. Clutch lever free playClutch lever free play:
10.0–15.0 mm (0.39–0.59 in)
1
2
(a)(b)
1. No brake lever free play
1
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Periodic maintenance an d a djustment
7-19
7 b
rakin g performance, which may re-
sult in loss of control and an acci-
d ent.
EAU36505
Brake li ght switchesThe brake light should come on just
before braking takes effect. The brake
light is activated by switches connect-
ed to the brake lever and brake pedal.
Since the brake light switches are
components of the anti-lock brake sys-
tem, they should only be serviced by a
Yamaha dealer.
EAU22393
Checkin g the front an d rear
b rake pa dsThe front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU36891
Front brake pa ds
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 to
the point that a wear indicator almost1. Brake pad wear indicator
1
1
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Periodic maintenance an d a djustment
7-20
7
touches the brake disc, have a
Yamaha dealer replace the brake pads as a set.
EAU46292
Rear brake pa ds
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 a wear
indicator groove almost appears, have
a Yamaha dealer replace the brake
pads as a set.
EAU40262
Checkin g the brake flui d levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
Front brake Rear
brake
WARNING
EWA16011
Improper maintenance can result in
loss of b raking a bility. O bserve
these precautions:  Insufficient brake flui d may al-
low air to enter the b rake sys-
tem, re ducing brakin g
performance.
 Clean the filler cap before re-
moving . Use only DOT 4 b rake
flui d from a seale d container.
1. Brake pad wear indicator groove
1
1
1. Minimum level mark
1
1. Minimum level mark
Specified b rake flui d:
DOT 4
1 1 1
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Periodic maintenance an d a djustment
7-21
7 
Use only the specified b rake flu-
i d ; otherwise, the ru bber seals
may deteriorate, causin g leak-
a g e.
 Refill with the same type of
brake flui d. A ddin g a brake flui d
other than DOT 4 may result in a
harmful chemical reaction.
 Be careful that water or d ust
d oes not enter the brake flui d
reservoir when refillin g. Water
will si gnificantly lower the boil-
in g point of the flui d an d may re-
sult in vapor lock, an d d irt may
clo g the ABS hy draulic unit
valves.
NOTICE
ECA17641
Brake fluid may damag e painted
surfaces or plastic parts. Always
clean up spille d flui d imme diately.As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake fluid level goes down suddenly, have a
Yamaha dealer check the cause before further riding.
EAU22734
Chan gin g the brake flui dHave a Yamaha dealer change the
brake fluid every 2 years. In addition,
have the seals of the master cylinders
and brake calipers, as well as the brake
hoses replaced at the intervals listed
below or sooner if they are damaged or
leaking.
 Brake seals: every 2 years
 Brake hoses: every 4 years
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