YAMAHA VMAX 2015 Service Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-26
3
2. Place the rider seat in the original position, and then tighten the
bolts.
TIPMake sure that the rider seat is proper-
ly secured before riding.3. Return the backrest to the originalposition.
Passen ger seat
To remove the passenger seat1. Pull the rider seat backrest release lever on the left side of the vehicle
as shown. The backrest will slide
forward. 2. Remove the bolts, and then pull
the passenger seat off.
To install the passenger seat
1. Insert the projection on the pas- senger seat into the seat holder as
shown. 2. Place the passenger seat in the
original position, and then install
the bolts.
3. Return the backrest to the original position.
TIPMake sure that the passenger seat is
properly secured before riding.
1. Projection
2. Seat holder
1
2
1. Rider seat backrest release lever
1. Bolt
2. Passenger seat
12
1
1. Projection
2. Seat holder
1
2
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INSTRUMENT AND CONTROL FUNCTIONS
3-27
3
EAU14734
Adjustin 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 spring
preload adjusting bolts, rebound
damping force adjusting knobs and
compression damping force adjusting
screws.NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn b eyond the
maximum or minimum setting s.Spring preloa d
To increase the spring preload and
thereby harden the suspension, turn
the adjusting bolt on each fork leg in di-
rection (a). To decrease the spring pre-
load and thereby soften the
suspension, turn the adjusting bolt on
each fork leg in direction (b). Align the appropriate groove on the ad-
justing mechanism with the top of the
front fork cap bolt.
Re
boun d d ampin g force
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting knob on
each fork leg in direction (a). To de-
crease the rebound damping force and
thereby soften the rebound damping,
turn the adjusting knob on each fork
leg in direction (b).
1. Spring preload adjusting bolt
1. Current setting
2. Front fork cap bolt
(a)
(b)
1543
21
2
1
Sprin
g preloa d setting :
Minimum (soft):
5
Standard:
4
Maximum (hard): 11. Rebound damping force adjusting knob
(a)
(b)1
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INSTRUMENT AND CONTROL FUNCTIONS
3-28
3
Compression dampin g force
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
screw on each fork leg in direction (a).
To decrease the compression damp-
ing force and thereby soften the com-
pression damping, turn the adjusting
screw on each fork leg in direction (b).
TIPAlthough the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above
specifications due to small differences
in production, the actual number of
clicks always represents the entire ad-
justing range. To obtain a precise ad- justment, it would be advisable to
check the number of clicks of each
damping force adjusting mechanism
and to modify the specifications as
necessary.
Re
boun d d ampin g settin g:
Minimum (soft):
17 click(s) in direction (b)*
Standard:
12 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting knob fully turned in direction (a)
1. Compression damping force adjusting
screw
Compression dampin g setting :
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)
1
(b) (a)
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INSTRUMENT AND CONTROL FUNCTIONS
3-29
3
EAU46494
Adjustin g the shock a bsorb er
assem blyThis shock absorber assembly is
equipped with a spring preload adjust-
ing knob and rebound and compres-
sion damping force adjusting knobs.NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn b eyond the
maximum or minimum setting s.Spring preloa d
To increase the spring preload and
thereby harden the suspension, turn
the adjusting knob in direction (a). To
decrease the spring preload and there-
by soften the suspension, turn the ad-
justing knob in direction (b).TIPAlign the appropriate mark on the ad-
justing mechanism with the end of the
adjusting knob.
Re boun d d ampin g force
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting knob in di-
rection (a). To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
knob in direction (b).
1. Spring preload adjusting knobSprin g preloa d setting :
Minimum (soft): 11
Standard: 6
Maximum (hard):
1
(a)
(b)
1
5
4
3
2
1
11
67
10
9
8
1. Rebound damping force adjusting knobRe boun d d ampin g setting :
Minimum (soft): 20 clicks in direction (b)*
Standard: 12 clicks in direction (b)*
Maximum (hard):
3 clicks in direction (b)*
* With the adjusting knob fully turned in direction (a)
(b)(a)
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-30
3
Compression
dampin g force
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
knob in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting knob in direction (b).
TIPTo obtain a precise adjustment, it is
advisable to check the actual total
number of clicks or turns of each
damping force adjusting mechanism.
This adjustment range may not exactly
match the specifications listed due to
small differences in production.
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.
1. Compression damping force adjusting knobCompression dampin g setting :
Minimum (soft): 12 clicks in direction (b)*
Standard: 10 clicks in direction (b)*
Maximum (hard):
1 clicks in direction (b)*
* With the adjusting knob fully turned in direction (a)
(b)
(a)
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-31
3
EAU15152
Luggage strap hol dersThere is a luggage strap holder on
each passenger footrest.
EAU41942
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
ECA15611
The EXUP system has been set an d
extensively teste d at the Yamaha
factory. Chan gin g these settin gs
without sufficient technical knowl-
e dge may result in poor perfor-
mance of or damag e to the en gine.
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 i gnition 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
1. Luggage strap holder
1
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-32
3
this system re
gularly an d have a
Yamaha dealer repair it if it does not
function properly.
EAU44893
I g nition circuit cut-off systemThe 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
3-33
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “
3. Turn the key on.
4. Shift the transmission into the neutral position.
5. Push the start 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 start 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.
YES NO YES NO YES NO
If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING
”.
U2CEE0E0.book Page 33 Wednesday, August 27, 2014 11:11 AM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15598
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 3-23, 3-24
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 6-11
Final gear oil • Check vehicle for oil leakage. 6-14
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage. 6-16
Front 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. 6-25, 6-25
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
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. 6-25, 6-25
Clutch • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check hydraulic system for leakage. 6-23
Throttle g rip • Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip free play and lubricate ca-
ble and grip housing. 6-20, 6-27
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary. 6-27
Wheels an d tires •Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
6-21, 6-23
Brake an d shift pe dals • Make sure that operation is smooth.
• Lubricate pedal pivoting points if necessary.
6-28
Brake an d clutch levers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary. 6-28
Si destan d • Make sure that operation is smooth.
• Lubricate pivot if necessary.
6-29
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
—
Instruments, li ghts, si gnals
an d switches • Check operation.
• Correct if necessary.
—
ITEM
CHECKS PAGE
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