YAMAHA YZF-R6 2019 Service Manual

Instrument and control functions
4-22
4
EAU13435
Catalytic converterThe exhaust system contains catalytic
converter(s) to reduce harmful exhaust
emissions.
WARNING
EWA10863
The exhaust system is hot after op-
eration. To prevent a fire hazar d or
b urns:
 Do not park the vehicle near
possi ble fire hazar ds such as
g rass or other materials that
easily burn.
 Park the vehicle in a place
where pe destrians or chil dren
are not likely to touch the hot
exhaust system.
 Make sure that the exhaust sys-
tem has coole d down before
d oin g any maintenance work.
 Do not allow the en gine to i dle
more than a few minutes. Lon g
i d lin g can cause a buil d-up of
heat.
EAU79900
SeatsPassen ger seat
To remove the passenger seat1. Insert the key into the seat lock, and then turn it clockwise.
2. Lift the front of the passenger seat and pull it forward.
To install the passenger seat1. Insert the projection on the rear of the passenger seat into the seat
holder as shown, and then push
the front of the seat down to lock
it in place. 2. Remove the key.
Ri der seat
To remove the rider seat
1. Remove the passenger seat.
2. Pull up the corners on the rear of the rider seat as shown, remove
the bolts with the hexagon wrench
located under the passenger seat,
and then pull the seat off.
1. Seat lock
2. Unlock.
1
2
1. Projection
2. Seat holder
2
1
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Instrument and control functions
4-23
4
To install the rider seat
1. Insert the projection into the seatholder as shown, then place the
seat in the original position. 2. Install the bolts with the hexagon
wrench.
3. Insert the hexagon wrench back into its holder.
4. Install the passenger seat.
TIPMake sure that the seats are properly
secured before riding.
EAU39672
Rear view mirrorsThe rear view mirrors of this vehicle
can be folded forward or backward for
parking in narrow spaces. Fold the mir-
rors back to their original position be-
fore riding.
WARNING
EWA14372
Be sure to fol d the rear view mirrors
b ack to their ori ginal position before
ri din g.
1. Bolt
1. Hexagon wrench
11
1. Seat holder
2. Projection
2
1
1. Riding position
2. Parking position1
22
1
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Instrument and control functions
4-24
4
EAU79923
A djustin g the front forkThis model is equipped with adjustable
suspension. The spring preload, re-
bound damping force, and compres-
sion damping force of each leg can be
adjusted.
WARNING
EWA10181
Always a djust both fork le gs equally,
otherwise poor han dlin g an d loss of
sta bility may result.NOTICE
ECA24120
 Use extra care to avoi d scratch-
in g the ano dize d finish of the
a d justin g nuts an d b olts when
makin g suspension ad just-
ments.
 To avoi d d amag ing the suspen-
sion’s internal mechanisms, do
not attempt to turn beyon d the
maximum or minimum settin gs.Sprin g preloa d
Turn the adjusting nut in direction (a) to
increase the spring preload. Turn the adjusting nut in direction (b) to
decrease the spring preload.
To set the spring preload, turn the ad-
juster in direction (b) until it stops, and
then count the turns in direction (a).
TIPWhen turning the spring preload ad-
juster in direction (a), it may turn be-
yond the stated specifications,
however such adjustments are ineffec-
tive and may damage the suspension.Re
boun d d ampin g force
Turn the adjusting bolt in direction (a)
to increase the rebound damping
force.
Turn the adjusting bolt in direction (b)
to decrease the rebound damping
force.
To set the rebound damping force, turn
the adjuster in direction (a) until it
stops, and then count the clicks in di-
rection (b).
1. Spring preload adjusting nut
Sprin g preloa d settin g:
Minimum (soft): 0 turn(s) in direction (a)
Standard: 6 turn(s) in direction (a)
Maximum (hard):
15 turn(s) in direction (a)(a)
(b)
1
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Instrument and control functions
4-25
4
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
 When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica- tions, however such adjustments
are ineffective and may damage
the suspension.
Compression
dampin g force
Turn the adjusting bolt in direction (a)
to increase the compression damping
force.
Turn the adjusting bolt in direction (b)
to decrease the compression damping
force.
To set the compression damping
force, turn the adjuster in direction (a)
until it stops, and then count the clicks
in direction (b).
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
 When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica-
tions, however such adjustments
are ineffective and may damage
the suspension.
1. Rebound damping force adjusting boltReboun d d ampin g setting :
Minimum (soft): 14 click(s) in direction (b)
Standard: 7 click(s) in direction (b)
Maximum (hard):
1 click(s) in direction (b)
(a)
(b)
1
1. Compression damping force adjusting bolt
(b)
(a)
1
Compression dampin g settin g:
Minimum (soft):
23 click(s) in direction (b)
Standard:
14 click(s) in direction (b)
Maximum (hard): 1 click(s) in direction (b)
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Instrument and control functions
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4
EAU79933
A djustin g the shock a bsor ber
assem blyThis model is equipped with adjustable
suspension. The spring preload, re-
bound damping force, fast compres-
sion damping force, and slow
compression damping force can be
adjusted.NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn b eyond the
maximum or minimum settin gs.Sprin g preloa d
1. Loosen the locknut.
2. Turn the adjusting nut in direction (a) to increase the spring preload.
Turn the adjusting nut in direction
(b) to decrease the spring preload.
The spring preload setting is de-
termined by measuring distance
A. The longer distance A is, the
higher the spring preload; the
shorter distance A is, the lower the
spring preload. 
Use the special wrench and
the extension bar included in
the tool kit to make the ad-
justment.
3. Tighten the locknut to the speci-fied torque. NOTICE: Always
ti ghten the locknut ag ainst the
a d justin g nut, an d then ti ghten
the locknut to the specifie d
torque.
[ECA10122]
Re boun d d ampin g force
Turn the adjusting bolt in direction (a)
to increase the rebound damping
force.
Turn the adjusting bolt in direction (b)
to decrease the rebound damping
force.
To set the rebound damping force, turn
the adjuster in direction (a) until it
stops, and then count the clicks in di-
rection (b).
1. Locknut
2. Spring preload adjusting nut
3. Special wrench
4. Extension bar
1. Distance A
1
3
4
2
(a)
(b)
1
Sprin g preloa d:
Minimum (soft):
Distance A = 84.9 mm (3.34 in)
Standard:
Distance A = 89.9 mm (3.54 in)
Maximum (hard): Distance A = 92.9 mm (3.66 in)
Ti ghtenin g torque:
Locknut:
28 N·m (2.8 kgf·m, 21 lb·ft)
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Instrument and control functions
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4
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
 When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica- tions, however such adjustments
are ineffective and may damage
the suspension.
Compression
dampin g force
Fast compression damping forceTurn the adjusting bolt in direction (a)
to increase the compression damping
force.
Turn the adjusting bolt in direction (b)
to decrease the compression damping
force.
To set the compression damping
force, turn the adjuster in direction (a)
until it stops, and then count the turns
in direction (b).
TIPWhen turning the damping force ad-
juster in direction (b), it may turn be-
yond the stated specifications,
however such adjustments are ineffec-
tive and may damage the suspension.Slow compression damping forceTurn the adjusting bolt in direction (a)
to increase the compression damping
force.
Turn the adjusting bolt in direction (b)
to decrease the compression damping
force.
To set the compression damping
force, turn the adjuster in direction (a)
until it stops, and then count the clicks
in direction (b).
1. Rebound damping force adjusting boltRe boun d d ampin g setting :
Minimum (soft): 23 click(s) in direction (b)
Standard: 12 click(s) in direction (b)
Maximum (hard):
1 click(s) in direction (b)
1
(a)
(b)
1. Fast compression damping force adjusting
bolt
1
(a)
(b)
Fast compression dampin g settin g
Minimum (soft):
5.5 turn(s) in direction (b)
Standard:
3 turn(s) in direction (b)
Maximum (hard): 0 turn(s) in direction (b)
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Instrument and control functions
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4
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
 When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica- tions, however such adjustments
are ineffective and may damage
the suspension.
WARNING
EWA10222
This shock ab
sorber assem bly con-
tains hig hly pressurize d nitro gen
g as. Rea d an d un derstan d the fol-
lowin g information before han dlin g
the shock ab sorber assem bly.
 Do not tamper with or attempt
to open the cylin der assem bly.
 Do not su bject the shock a b-
sor ber assem bly to an open
flame or other hi gh heat source.
This may cause the unit to ex-
plod e due to excessive gas
pressure.
 Do not deform or damag e the
cylin der in any way. Cylin der
d amag e will result in poor
d ampin g performance.
 Do not dispose of a damag ed or
worn-out shock a bsor ber
as-
sem bly yourself. Take the shock
a b sor ber assem bly to a Yamaha
d ealer for any service.
EAU15283
EXUP systemThis model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the inner diameter of the exhaust
pipe. The EXUP system valve is con-
stantly adjusted in accordance with the
engine speed by a computer-con-
trolled servomotor.NOTICE
ECA10192
 The EXUP system has been set
an d extensively teste d at the
Yamaha factory. Chan gin g
these settin gs without sufficient
technical knowle dge may result
in poor performance of or dam-
a g e to the en gine.
 If the EXUP system cannot be
hear d when the main switch is
turne d on, have a Yamaha d eal-
er check it.
1. Slow compression damping force adjusting boltSlow compression dampin g setting
Minimum (soft): 18 click(s) in direction (b)
Standard: 14 click(s) in direction (b)
Maximum (hard):
1 click(s) in direction (b)
1
(a)
(b)
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Instrument and control functions
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4
EAU70641
Auxiliary DC connectorThis vehicle is equipped with an auxil-
iary DC connector. Consult your
Yamaha dealer before installing any accessories.
EAU15306
Si destan dThe sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situa-
tions. (See the following section for an
explanation of the ignition circuit cut-
off system.)
WARNING
EWA10242
The vehicle must not be ri dden with
the si destan d d own, or if the si de-
stan d cannot b e properly moved up
(or does not stay up), otherwise the
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possi ble loss of control.
Yamaha’s ig nition circuit cut-off
system has been desi gne d to assist
the operator in fulfillin g the respon-
si bility of raisin g the si destan d b e-
fore startin g off. Therefore, check this system reg
ularly and have a
Yamaha dealer repair it if it does not
function properly.
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Instrument and control functions
4-30
4
EAU57952
Ig nition circuit cut-off systemThis system prevents in-gear engine
starts unless the clutch lever is pulled
and the sidestand is up. Also, it will
stop the running engine should the
sidestand be lowered while the trans-
mission is in gear.
Periodically check this system via the
following procedure.TIP This check is most reliable if per-
formed with a warmed-up engine.
 See pages 4-2 and 4-3 for switch
operation information.
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Instrument and control functions
4-31
4
With the engine turned off:
1. Move the sidestand down.
2. Set engine stop switch to run position.
3. Turn main switch to on position.
4. Shift transmission into neutral.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Pull the clutch lever.
8. Shift transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Pull the clutch lever.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
YES NO YES NO YES NO
The neutral switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The sidestand switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.If a malfunction is found, have the vehicle
inspected before riding.
WARNING
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