2016 YAMAHA WR 450F ECO mode

EAS2GC1003
INTRODUCTION
Congratulations on your purchase of a Yamaha WR series. This model is the culmination of Yama-
ha's vast experience in the production of pacesetting racing machines. It represents the highest
grade of craftsmanship and reliability that have made Yamaha a leader.
This manual explains operation, inspection, basic maintenance and tuning of your machine. If you
have any questions about this manual or your machine, please contact your Yamaha dealer.
The design and manufacture of this Yamaha machine fully comply with the emissions standards for
clean air applicable at the date of manufacture. Yamaha has met these standards without reducing
the performance or economy of operation of the machine. To maintain these high standards, it is im-
portant that you and your Yamaha dealer pay close attention to the recommended maintenance
schedules and operating instructions contained within this manual.
TIP
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual
contains the most current product information available at the time of printing, there may be minor
discrepancies between your machine and this ma nual. If you have any questions concerning this
manual, please consult your Yamaha dealer.
EWA
WARNING
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS
MACHINE. DO NOT ATTEMPT TO OPERATE THIS MACHINE UNTIL YOU HAVE ATTAINED A
SATISFACTORY KNOWLEDGE OF ITS CONTROLS AND OPERATING FEATURES AND UNTIL
YOU HAVE BEEN TRAINED IN SAFE AND PROPER RIDING TECHNIQUES. REGULAR INSPEC-
TIONS AND CAREFUL MAINTENANCE, ALONG WITH GOOD RIDING SKILLS, WILL ENSURE
THAT YOU SAFETY ENJOY THE CAPABILITIES AND THE RELIABILITY OF THIS MACHINE.
EAS2GC1004
IMPORTANT MANUAL INFORMATION
Particularly important informat ion is distinguished in this manual by the following notations.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
A WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid
damage to the vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
TIP

MULTI-FUNCTION DISPLAY
1-21
EAS2GC1042
MULTI-FUNCTION DISPLAYEWA
WARNING
Be sure to stop the machine before making
any setting changes to the multi-function
display.
The multi-function display is equipped with the
following:
BASIC MODE:
• Speedometer
•Clock
• Two tripmeters (which shows the distance that has been traveled since it was last set to
zero)
RACE MODE:
• Timer (which shows the time that has been
accumulated since the start of timer measure-
ment)
• Tripmeter (which shows the accumulated travel distance in timer measurement)
• Change tripmeter digits (capable of change to
any given ones)
EAS2GC1043DESCRIPTION
Operation buttons:
1. Select button “SLCT 1”
2. Select button “SLCT 2”
3. Reset button “RST”
Screen display:
4. Tripmeter indicator
5. Tripmeter indicator
6. Timer indicator
7. Clock/Timer
8. Speedometer
9. Odometer/Tripmeter
TIP
The operation buttons can be pushed in the fol-
lowing two manners:
Short push: Push the button. ( )
Long push: Push the button for 2 seconds or
more. ( )
EAS2GC1044BASIC MODE
Changing speedometer display (for U.K.)
1. Push the “SLCT2” button for 2 seconds or more to change the speedometer units. The
speedometer display will change in the fol-
lowing order:
MPH  km/h  MPH.
Setting the time
1. Push the “SLCT1” button for 2 seconds or more to enter the time setting mode.
2. Push the “RST” button to change the display for time indication. The display will change in
the following order:
Hour MinuteSecond Hour.
TIP
The digits capable of setting go on flashing.
3. Push the “SLCT1” button (plus) or “SLCT2”
button (minus) and change the time. A long
push on the button will fast-forward the time.

MULTI-FUNCTION DISPLAY
1-22
4. To end the setting, push the “RST” button for 2 seconds or more.
TIP
• In a 30-second absence of button operation, the setting will come to an end with the indi-
cated time.
• To reset the seconds, push the “SLCT1” but-
ton or “SLCT2” button.
Changing odometer and tripmeter A/B
(TRIP A/B)
TIP
• The odometer will lock at 99999.
• The tripmeter will reset and continue counting
after 999.9 is reached.
1. Push the “SLCT2” button to change the trip- meter display. The display will change in the
following order:
Odometer TRIP A TRIP B TRIP A 
Odometer.
TIP
To reset the digits, select the tripmeter involved
and push the “RST” button for 2 seconds or
more.
EAS2GC1045CHANGEOVER TO BASIC MODE/RACE
MODE
TIP
• Measurement using the timer function can be made in RACE MODE.
• Indicator will light up as an identifier that
shows RACE MODE has been selected.
• RACE MODE cannot display the functions as in BASIC MODE.
• Changeover to RACE MODE forces the digits for tripmeter A (TRIP A) in BASIC MODE to be
reset.
Changeover from BASIC MODE to RACE
MODE
1. Push the “SLCT1” button and “SLCT2” but- ton for 2 seconds or more at the same time
to change over to RACE MODE.
TIP
Changeover to RACE MODE will put manual
start measurement on standby causing and
to flash. (For manual start, refer to “Putting
measurement on standby” in “RACE MODE”.)

MULTI-FUNCTION DISPLAY
1-23
Returning to BASIC MODE from RACE
MODE
TIP
It is possible to return to BASIC MODE with tim-
er measurement at a stop.
1. Check that the timer is not in operation. If the
timer is in operation, stop the timer by push-
ing the “SLCT1” button and “SLCT2” button
at the same time.
2. Push the “SLCT1” button and “SLCT2” but- ton for 2 seconds or more at the same time
to change over to BASIC MODE.
EAS2GC1046RACE MODE
Putting measurement on standby
TIP
Starting measurement consists of the following
two starts, either of which can be selected.
• Manual startStarting measurement by the rider himself op-
erating the button. (A long push on the
“SLCT2” button will put measurement on
standby.)
• Auto start Starting timer measurement automatically on
detection of the movement of the machine. (A
long push on the “SLCT1” button will put mea-
surement on standby.) Manual start
TIP
Initial setting at changeover to RACE MODE
will remain for manual start.
1. Check that changeover to RACE MODE has
been made. (Refer to “Changeover from BA-
SIC MODE to RACE MODE”.)
TIP
When the machine is made ready for a run by
manual start, and will start flashing.
2. Start timer measurement by pushing the “RST” button.
3. When stopping timer measurement, pushing the “SLCT1” button and “SLCT2” button at
the same time.
TIP
If the machine is run while timer measurement
is not made, no change will occur to the digit in
tripmeter A (TRIP A).
4. To resume the measurement, again push the “SLCT1” button and “SLCT2” button at
the same time.
Auto start
1. Check that changeover has been made to RACE MODE. (Refer to “Changeover from
BASIC MODE to RACE MODE”.)
2. Make the machine ready for a run by push- ing the “SLCT1” button for 2 seconds or
more.
TIP
When the measurement is made ready for a
run by auto start, and will start flashing.
Timer display will turn on scrolling from left to
right.

STARTING AND BREAK-IN
1-30
EAS2GC1053STARTING A WARM ENGINE
Follow the same procedure as for starting a
cold engine with the exception that the starter is
not required when the engine is warm.
TIP
If it fails to start, fully open the throttle grip and
give 10 to 20 slow kicks to clear the engine of
the rich air-fuel mixture retained in it.
EAS2GC1054BREAK-IN PROCEDURES
A break-in is important so that rotating portion,
sliding surfaces, and mounted areas may fit
one another, and that the rider may become ac-
customed to the machine.
ECA
NOTICE
Before running, do maintenance on the air
filter element.
Refer to “CLEANING THE AIR FILTER ELE-
MENT” on page 3-14.
1. After warming up the engine, drive it for about 20 minutes at a throttle opening of 1/2
or less.
TIP
This model is equipped with an engine auto-
stop system. The engine stops automatically if
left idling for 7 minutes. If the engine stops,
push the start switch or push down the kick-
starter lever to restart the engine.
2. Make a pit stop, and check mounted areas
for looseness, oil leaks, or other problems.
3. Then, drive it for about 40 minutes at a throt- tle opening of 3/4 or less.
4. Make a pit stop again, and thoroughly check mounted areas for looseness, oil leaks, or
other problems. Thorough checks and ad-
justments are required in particular for
stretch of cables, free play of the brake,
stretch of the drive chain, looseness of the
spoke, and so on.
ECA
NOTICE
After a break-in or after each race, always
check the points shown in “TORQUE-
CHECK POINTS” for tightening torques and
retighten them. (Refer to “TORQUE-CHECK
POINTS” on page 1-32.)
Also when the following parts are replaced,
a break-in is required.
• Cylinder and Crankshaft: A break-in is re-quired for about an hour.
• Piston, Piston ring, Valve, Camshaft, and
Gear: A break-in is required for about 30
minutes at a throttle opening of 1/2 or less.
Observe the condition of the engine careful-
ly during a break-in.
For checkpoints for a break-in, see “MAIN-
TENANCE AFTER BREAK-IN”. If any prob-
lem is found, immediately stop the engine
and make a checkup.

ENGINE SPECIFICATIONS
2-2
EAS2GC1062
ENGINE SPECIFICATIONS
EngineEngine type Liquid cooled 4-stroke, DOHC
Displacement 449 cm
3
Number of cylinders Single cylinder
Bore  stroke 97.0  60.8 mm (3.82  2.39 in)
Compression ratio 12.5:1
Starting system Electric starter and kickstarter
Fuel
Recommended fuel Premium unleaded gasoline only
Fuel tank capacity 7.5 L (2.0 US gal, 1.7 Imp.gal)
Fuel reserve amount 2.0 L (0.5 US gal, 0.4 Imp.gal)
Engine oilLubrication system Wet sump
Recommended brand YAMALUBE
Type SAE 10W-40, SAE 10W-50, SAE 15W-40, SAE 20W-40 or SAE 20W-50
Recommended engine oil grade API service SG type or higher, JASO standard MA
Engine oil quantity
Quantity (disassembled) 0.95 L (1.00 US qt, 0.84 Imp.qt)
Oil change 0.67 L (0.71 US qt, 0.59 Imp.qt)
With oil filter removal 0.69 L (0.73 US qt, 0.61 Imp.qt)
Oil filterOil filter type Paper
Bypass valve opening pressure 40.0–80.0 kPa (0.40–0.80 kgf/cm
2,
5.8–11.6 psi)
Oil pump Oil pump type Trochoid
Inner-rotor-to-outer-rotor-tip clear ance 0.000–0.150 mm (0.0000–0.0059 in)
Limit 0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump-housing clearance 0.13–0.18 mm (0.0051–0.0071 in)
Limit 0.24 mm (0.0094 in)
Oil-pump-housing-to -inner-and-outer-rotor
clearance 0.06–0.11 mm (0.0024–0.0043 in)
Limit 0.17 mm (0.0067 in)
Cooling system
Radiator (including all routes) 1.03 L (1.09 US qt, 0.91 Imp.qt)
Radiator capacity 0.57 L (0.60 US qt, 0.50 Imp.qt)
Radiator cap valve opening pressure 107.9–137.3 kPa (1.08–1.37 kg/cm
2,
15.6–19.9 psi)
Radiator core Width 112.6 mm (4.43 in)
Height 235.0 mm (9.25 in)
Depth 28.0 mm (1.10 in)
Water pump
Water pump type Single suction centrifugal pump
Spark plug(s)Manufacturer/model NGK/CR8E
Spark plug gap 0.7–0.8 mm (0.028–0.031 in)

ELECTRICAL SPECIFICATIONS
2-10
EAS2GC1064
ELECTRICAL SPECIFICATIONS
VoltageSystem voltage 12 V
Ignition systemIgnition system TCI
Advancer type Digital
Ignition timing (B.T.D.C.) 10.0 ° at 2000 r/min
Engine control unitModel/manufacturer 2GC0/YAMAHA (USA) (CAN) 2GC1/YAMAHA (EUR) (AUS) (NZL) (ZAF)
Ignition coilMinimum ignition spark gap 6.0 mm (0.24 in)
Primary coil resistance 2.16–2.64 
Secondary coil resistance 8.64–12.96 k 
Spark plug cap
Resistance 7.50–12.50 k 
Lean angle sensor output voltage
Operating angle 45 °
Output voltage up to operating angle 3.7–4.4 V
Output voltage over operating angle 0.4–1.4 V
AC magneto
Standard output 14.0 V, 160 W at 5000 r/min
Stator coil resistance 0.528–0.792  (W–W)
Rectifier/regulator
Regulator type Three-phase
No load regulated voltage 14.1–14.9 V
Rectifier capacity (DC) 35.0 A
BatteryModel YTZ7S (F)
Voltage, capacity 12 V, 6.0 Ah (10HR)
Specific gravity 1.31
Manufacturer GS YUASA
Ten hour rate charging current 0.60 A
Headlight
Bulb type Halogen bulb
Bulb voltage, wattage  quantity
Headlight HS1, 35.0 W/35.0 W  1 (Hi)
Tail/brake light LED
Meter lighting EL (Electroluminescent)
Indicator light
Fuel level warning light 12 V, 1.7 W  1
Engine trouble warning light 12 V, 1.7 W  1
Electric starting system
System type Constant mesh

ENGINE
3-11
3. Remove:• Radiator capSlowly loosen the radiator cap to drain cool-
ant.
TIP
When the radiator cap is loosened, coolant will
gush out transversely; therefore, bring the con-
tainer near to the outlet.
4. Thoroughly flush the cooling system with
clean tap water.
5. Install:
• Copper washer
• Coolant drain bolt
6. Pour coolant.
EWA
WARNING
• If coolant splashes in your eyes, thorough- ly wash them with water and consult a
doctor.
• If coolant splashes on your clothes, quick-
ly wash it away with water and then with
soap and water.
• If coolant is swallowed, induce vomiting
and get immediate medical attention.
ECA
NOTICE
• Adding water instead of coolant lowers the
antifreeze content of the coolant. If water
is used instead of coolant check, and if
necessary, correct the antifreeze concen-
tration of the coolant.
• Use only distilled water. However, if dis-
tilled water is not available, soft water may
be used.
• If coolant comes into contact with painted
surfaces, immediately wash them with wa-
ter.
• Do not mix different types of antifreeze.
7. Install:• Radiator cap 8. Start the engine, warm this up for 3 minutes,
stop it, and then wait for it to cool down.
TIP
This model is equipped with an engine auto-
stop system. The engine stops automatically if
left idling for 7 minutes. If the engine stops,
push the start switch or push down the kick-
starter lever to restart the engine.
9. Check:• Coolant levelRefer to “CHECKING THE COOLANT LEV-
EL” on page 3-10.
EAS2GC1085CHECKING THE RADIATOR CAP
1. Check:• Seal (radiator cap) “1”
• Valve and valve seat “2”
Crack/damage  Replace.
Exist fur deposits  Clean or replace.
EAS2GC1086CHECKING THE RADIATOR CAP VALVE
OPENING PRESSURE
1. Check:
• Radiator cap valve opening pressure
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Install the radiator cap tester adapter “2” and the radiator cap tester “3” to the radiator cap
“1,” and activate the tester to check whether
it can stay for 5 to 10 seconds within stan-
dard pressure values.
TIP
Before attaching the cap to the tester, apply
water to its sealing surface.
No stay  Replace.
Coolant drain bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Recommended coolant High quality ethylene glycol
anti-freeze containing anti-cor-
rosion for aluminum engine
Radiator (including all routes) 1.03 L (1.09 US qt, 0.91 Imp.qt)
Coolant mixing ratio 1:1 (Coolant:Water)
New
T R..
Radiator cap valve opening pres-
sure 107.9–137.3 kPa (1.08–1.37 kg/
cm
2,15.6–19.9 psi)