YAMAHA YZ65 2018 Owner's Guide

Instrument and control functions
4-5
4
Fillin
g the fuel tank
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.
1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
3. Wipe up any spilled fuel immedi- ately. NOTICE: Immediately
wipe off spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painte d surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can
cause injury or death. Han dle gaso-
line with care. Never siphon gasoline
b y mouth. If you shoul d swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your d octor immedi-
ately. If g asoline spills on your skin,
wash with soap an d water. If g aso-
line spills on your clothin g, chan ge
your clothes.
1. Maximum fuel level
2. Fuel tank filler tube
12
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Instrument and control functions
4-6
4
EAU13414
Fuel tank breather hose
Before operating the motorcycle:
 Check the fuel tank breather hose
connection.
 Check the fuel tank breather hose
for cracks or damage, and replace
it if necessary.
 Make sure that the fuel tank
breather hose is not blocked, and
clean it if necessary.
EAU41281
Fuel cock
The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has two positions:
OFF
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run-
ning.
ON
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
1. Fuel tank breather hose
1
1. Arrow mark positioned over “OFF”
1. Arrow mark positioned over “ON”
1
1
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Instrument and control functions
4-7
4
EAU13641
Starter (choke) knob
Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the knob in direction (a) to turn
on the starter (choke).
Move the knob in direction (b) to turn
off the starter (choke).
EAU13651
Kickstarter
To start the engine, fold out the kick-
starter lever, move it down lightly with
your foot until the gears engage, and
then push it down smoothly but force-
fully. This model is equipped with a pri-
mary kickstarter, allowing the engine to
be started in any gear if the clutch is
disengaged. However, shifting the
transmission into the neutral position
before starting is recommended.
1. Starter (choke) knob
1(a)
(b)
1. Kickstarter lever
1
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Instrument and control functions
4-8
4
EAU84041
Seat
To remove the seat
1. Pull up the rear of the seat and re- move the bolt.
2. Pull the seat upwards and rear- ward to remove it.
To install the seat 1. Fit the slot on the front of the seat onto the projection on the fuel
tank while inserting the projection
on the middle of the seat into the
seat holder. 2. Make sure the seat is in its original
position.
3. Install the bolt at the rear of the seat.
TIP
When removing and installing the
seat, be careful not to damage the
seat with a tool.
 Make sure that the seat is properly
secured before riding.
1. Bolt
1
1. Slot
2. Projection
3. Seat holder
3
2
1
2
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Instrument and control functions
4-9
4
EAU84381
A djustin g the front fork
WARNING
EWA10181
Always a djust both fork le gs equally,
otherwise poor han dlin g an d loss of
sta bility may result.
This front fork is equipped with re-
bound damping force adjusting screws
and compression damping force ad-
justing screws.
NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn beyon d the
maximum or minimum settin gs.
Re boun d d ampin g force
1. Remove the protector.
2. To increase the rebound damping force and thereby harden the re-
bound damping, turn the adjusting
screw on each fork leg in direction
(a). To decrease the rebound
damping force and thereby soften
the rebound damping, turn the ad-
justing screw on each fork leg in
direction (b). 3. Install the protector.
TIP
Install the protector so that the side
with the notch is facing rearward.
TIP
Although a damping force adjuster
may click beyond the stated minimum
settings, such adjustments are ineffec-
tive and may damage the suspension.
1. Protector
1
1. Rebound damping force adjusting screw
Re
boun d d ampin g settin g:
Minimum (soft): 20 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)
1. Notch
1 1
(a)
(b)(a)(b)
1
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Instrument and control functions
4-10
4 Compression
dampin g force
1. Remove the rubber cap by pulling it out of the front fork leg.
2. To increase the compression damping force and thereby hard-
en the compression damping, turn
the adjusting screw on each fork
leg in direction (a). To decrease
the compression damping force
and thereby soften the compres-
sion damping, turn the adjusting
screw on each fork leg in direction
(b).
3. Install the rubber cap.
TIP
Although a damping force adjuster
may click beyond the stated minimum
settings, such adjustments are ineffec-
tive and may damage the suspension.
EAU84390
Front fork blee din g
When riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the air from each front fork leg.
WARNING
EWA10201
Always blee d b oth fork le gs, other-
wise poor han dlin g an d loss of sta-
b ility may result.
To bleed the front fork legs
1. Remove the protector.
2. Place the motorcycle on a suitable
stand. (See page 7-27.)
3. Make sure the front wheel is off the ground and the area near the
bleed screws is clean.
4. Remove the bleed screws.
1. Rubber cap
2. Compression damping force adjusting screw
Compression dampin g settin g:
Minimum (soft): 20 click(s) in direction (b)*
Standard:
12 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned in direction (a)
2
1
(a)(b)
1. Protector
1
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Instrument and control functions
4-11
4
5. Wait a few seconds, and then in-
stall the bleed screws.
6. Install the protector.
EAU84211
A djustin g the shock a bsor ber
assem bly
This shock absorber assembly is
equipped with a spring preload adjust-
ing nut, a rebound damping force ad-
justing screw and a compression
damping force adjusting screw.
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
Adjust the spring preload as follows. 1. Remove the seat. (See page 4-8.)
2. Loosen the clamp bolt.
3. Remove the bolts, and then take the panels off.
1. Bleed screw
1 1
1. Clamp bolt
1. Bolt
2. Panel
1
1
2
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Instrument and control functions
4-12
4 4. Remove the muffler bolt, and then
remove the muffler.
5. Remove the rear frame bolts, and then remove the rear frame as-
sembly. 6. Loosen the locknut.
7. 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).
 A special wrench can be ob-
tained at a Yamaha dealer to
make this adjustment.
 The spring preload setting is
determined by measuring
distance A, shown in the illus-
tration. The longer distance A
is, the lower the spring pre-
load; the shorter distance A
is, the higher the spring pre-
load. With each complete
1. Bolt
2. Panel
1. Muffler
2. Muffler bolt
1. Rear frame assembly
2. Rear frame bolt
1
2
2
1
2
1
1. Rear frame assembly
2. Rear frame bolt
1. Locknut
2. Spring preload adjusting nut
2
1
1
2
(a)
(b)
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Instrument and control functions
4-13
4
turn of the adjusting nut, dis-
tance A is changed by 1.5
mm (0.06 in).
8. Tighten the locknut to the speci- fied torque. NOTICE: Always
ti g hten the locknut ag ainst the
a d justin g nut, an d then ti ghten
the locknut to the specified
torque.
[ECA10122]
9. Install the rear frame assembly as shown, and then tighten the rear
frame bolts to the specified
torque. 10. Install the muffler, and then tighten
the muffler bolt to the specified
torque.
11. Place the panels in their original position, and then install the bolts.
12. Tighten the clamp bolt.
13. Install the seat.
Re boun d d ampin g force
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting screw in
direction (a). To decrease the rebound
1. Distance A
Sprin g preloa d:
Minimum (soft): Distance A = 205.5 mm (8.09 in)
Standard: Distance A = 199.0 mm (7.83 in)
Maximum (hard):
Distance A = 195.0 mm (7.68 in)
Ti ghtening torque:
Locknut: 30 N·m (3.0 kgf·m, 22 lb·ft)
1
Tightenin g torque:
Rear frame bolt: 23 N·m (2.3 kgf·m, 17 lb·ft)
Ti ghtenin g torque:
Muffler bolt: 10 N·m (1.0 kgf·m, 7.4 lb·ft)
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Instrument and control functions
4-14
4 damping force and thereby soften the
rebound damping, turn the adjusting
screw in direction (b).
TIP
Although a damping force adjuster
may click beyond the stated minimum
settings, such adjustments are ineffec-
tive and may damage the suspension.
Compression
dampin g force
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
screw in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting screw in direction (b).
TIP
Although a damping force adjuster
may click beyond the stated minimum
settings, such adjustments are ineffec-
tive and may damage the suspension.
WARNING
EWA10222
This shock a bsor ber assem bly con-
tains hi ghly pressurize d nitro gen
g as. Rea d an d 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.
1. Rebound damping force adjusting screw
Re boun d d ampin g setting :
Minimum (soft): 30 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)
1(a)
(b)
1. Compression damping force adjusting
screw
Compression dampin g settin g:
Minimum (soft): 15 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)
(b)
(a)1
UBR880E0.book Page 14 Friday, February 16, 2018 8:32 AM