YAMAHA YZF-R6 2017 Service Manual

Instrument and control functions
4-23
4
EAU79900
Seats
Passen ger seat
To remove the passenger seat
1. 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 seat
1. 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.
To install the rider seat
1. Insert the projection into the seat holder as shown, then place the
seat in the original position.
1. Seat lock
2. Unlock.
1. Projection
2. Seat holder
1
2
2
1
1. Bolt
1. Hexagon wrench
1
1
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Instrument and control functions
4-24
4 2. Install the bolts with the hexagon
wrench.
3. Insert the hexagon wrench back into its holder.
4. Install the passenger seat.
TIP
Make sure that the seats are properly
secured before riding.
EAU39672
Rear view mirrors
The 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. Seat holder
2. Projection
2
1
1. Riding position
2. Parking position
1
2
2
1
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Instrument and control functions
4-25
4
EAU79921
A djustin g the front fork
This 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
stab ility 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 and b olts when
makin g suspension a djust-
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
To increase the spring preload and
thereby harden the suspension, turn
the adjusting nut on each fork in direc-
tion (a). To decrease the spring preload
and thereby soften the suspension,
turn the adjusting nut on each fork in
direction (b). Re
boun d d ampin g force
To increase the rebound damping for-
ce and thereby harden the rebound
damping, turn the adjusting bolt on
each fork leg in direction (a). To de-
crease the rebound damping force and
thereby soften the rebound damping,
turn the adjusting bolt on each fork leg
in direction (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)*
* With the adjusting nut fully turned in direction (b)
1. Rebound damping force adjusting bolt
(a)(b)
1
(a)(b)
1
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Instrument and control functions
4-26
4 Compression
dampin g force
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
bolt on each fork leg in direction (a). To
decrease the compression damping
force and thereby soften the compres-
sion damping, turn the adjusting bolt
on each fork leg in direction (b).
TIP
Although a damping force adjuster
may turn or click beyond the stated mi-
nimum settings, such adjustments are
ineffective and may damage the sus-
pension.
Re boun 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)*
* With the adjusting bolt fully turned in direction (a)
1. Compression damping force adjusting bolt
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)*
* With the adjusting bolt fully turned
in direction (a)
(b)(a)
1
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Instrument and control functions
4-27
4
EAU79931
A djustin g the shock a bsor ber
assem bly
This 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 beyon d the
maximum or minimum settin gs.
Sprin g preloa d
1. Loosen the locknut.
2. To increase the spring preload and thereby harden the suspen-
sion, turn the adjusting nut in di-
rection (a). To decrease the spring
preload and thereby soften the
suspension, turn the adjusting nut
in direction (b).
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 owner’s tool kit to make
the adjustment. 3. Tighten the locknut to the speci-
fied torque. NOTICE: Always
ti ghten the locknut ag ainst the
a d justin g nut, and then tighten
the locknut to the specifie d
torque.
[ECA10122]
1. Locknut
2. Spring preload adjusting nut
3. Special wrench
4. Extension bar
1. Distance A
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, 20 lb·ft)
1
34
2
(a)(b)
1
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Instrument and control functions
4-28
4 Re
boun d d ampin g force
To increase the rebound damping for-
ce and thereby harden the rebound
damping, turn the adjusting bolt in di-
rection (a). To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
bolt in direction (b).
Compression dampin g force
Fast compression damping force
To increase the compression damping
force and thereby harden the fast com-
pression damping, turn the adjusting
bolt in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting bolt in direction (b). Slow compression damping force
To increase the compression damping
force and thereby harden the slow
compression damping, turn the adjust-
ing bolt in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting bolt in direction (b).
1. Rebound damping force adjusting bolt
Re
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)*
* With the adjusting bolt fully turned in direction (a)
1
(a)(b)
1. Fast compression damping force adjusting
bolt
Fast compression dampin g setting
Minimum (soft): 5.5 turn(s) in direction (b)*
Standard: 3 turn(s) in direction (b)*
Maximum (hard):
0 turn(s) in direction (b)*
* With the adjusting bolt fully turned in direction (a)
1. Slow compression damping force adjusting
bolt
1
(a)(b)
1
(a)(b)
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Instrument and control functions
4-29
4
TIP
Although a damping force adjuster
may turn or click beyond the stated mi-
nimum settings, such adjustments are
ineffective and may damage the sus-
pension.
WARNING
EWA10222
This shock ab sorber assem bly con-
tains hi ghly pressurize d nitro gen
g as. Read and un derstan d the fol-
lowin g information before han dlin g
the shock a bsor ber assem bly.
 Do not tamper with or attempt
to open the cylind er assembly.
 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-
plo de due to excessive g as
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 d ispose 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 system
This 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 deal-
er check it.
Slow compression dampin g settin g
Minimum (soft): 18 click(s) in direction (b)*
Standard:
14 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting bolt fully turned in direction (a)
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Instrument and control functions
4-30
4
EAU70641
Auxiliary DC connector
This vehicle is equipped with an auxil-
iary DC connector. Consult your
Yamaha dealer before installing any accessories.
EAU15306
Si destan d
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
The 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 move d up
(or does not stay up), otherwise the
si destan d coul d contact the g round
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 raising the sidestan d b e-
fore startin g off. Therefore, check
this system re gularly an d have a
Yamaha dealer repair it if it does not
function properly.
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Instrument and control functions
4-31
4
EAU64050
Ig nition circuit cut-off system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
 It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch le-
ver is not pulled.
 It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the side-
stand is still down.
 It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system accord-
ing to the following procedure.
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Instrument and control functions
4-32
4
With the engine turned off:
1. Move the sidestand down.
2.
Make sure that the start/engine stop
switch is set to “ ”.
3. Turn the key on.
4. Shift the transmission into the neutral position.
5.
Push the “ ” side of the start/engine
stop switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12.
Push the “ ” side of the
start/engine stop switch.
Does the engine start?
The system is OK. The motorcycle can
be ridden.
The neutral switch may not be working
correctly.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The sidestand switch may not be
working correctly.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The clutch switch may not be working
correctly.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
WARNING
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
YES NO
YESNO
YESNO
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