2005 YAMAHA WR 450F battery

1 - 10
GEN
INFO
CONTROL FUNCTIONS
EC150000
CONTROL FUNCTIONS
MAIN SWITCH
Functions of the respective switch positions
are as follows:
ON:
The engine can be started only at this position.
OFF:
All electrical circuits are switched off.
Main switch indicator light
The main switch 1 is equipped with an indica-
tor light 2 to avoid forgetting to turn it off. This
light functions as follows.
It lights up with the main switch “ON”.
It goes out when the engine increases its
speed after being started.
It lights up again when the engine is stopped.
NOTE:
If the indicator light will not light up with the
main switch “ON”, it shows a lack of the battery
voltage. Recharge the battery.
EC151000
“ENGINE STOP” BUTTON
The “ENGINE STOP” button 1 is located on
the left handlebar. Continue pushing the
“ENGINE STOP” button till the engine comes
to a stop.
START SWITCH
The start switch 1 is located on the right han-
dlebar. Push this switch to crank the engine
with the starter.

1 - 16
GEN
INFO
STARTING AND BREAK-IN
NOTE:
If the engine fails to start by pushing the start
switch, release the switch, wait a few seconds,
and then try again. Each starting attempt
should be as short as possible to preserve the
battery. Do not crank the engine more than
10 seconds on any one attempt. If the engine
does not start with the starter motor, try using
the kickstarter.
WARNING
If the starter motor will not turn when
pushing the start switch, stop pushing it
immediately and kick start the engine in
order to avoid the load on the motor.
Do not open the throttle while kicking the
kickstarter. Otherwise, the kickstarter
may kick back.
7. Return the cold starter knob to its original
position and run the engine at 3,000 ~
5,000 r/min for 1 or 2 minutes.
NOTE:
Since this model is equipped with an accelera-
tor pump, if the engine is raced (the throttle
opened and closed), the air/fuel mixture will be
too rich and the engine may stall. Also unlike a
two-stroke engine, this model can idle.
CAUTION:
Do not warm up the engine for extended
periods of time.

SPEC
2 - 3 Brake:
Front brake type Single disc brake
Operation Right hand operation
Rear brake type Single disc brake
Operation Right foot operation
Suspension:
Front suspension Telescopic fork
Rear suspension Swingarm (link type monocross suspension)
Shock absorber:
Front shock absorber Coil spring/oil damper
Rear shock absorber Coil spring/gas, oil damper
Wheel travel:
Front wheel travel 300 mm (11.8 in)
Rear wheel travel 305 mm (12.0 in)
Electrical:
Ignition system CDI
Generator system AC magneto
Battery type YTZ7S
Battery voltage/capacity 12 V/6 AH
Specific gravity 1.310
Headlight type: Quartz bulb (halogen)
Bulb wattage × quantity:
Headlight 12 V 60/55 W × 1
Taillight 12 V 21/5 W × 1
GENERAL SPECIFICATIONS

2 - 23
SPECCABLE ROUTING DIAGRAM
EC240000
CABLE ROUTING DIAGRAM
1Fuel tank breather hose
2Clamp
3Diode
4Wire harness
5Hot starter cable
6Negative battery lead
7Starter motor lead
8TPS (throttle position sensor)
lead
9Cylinder head breather hose
0Neutral switch lead
AOil hose
BAC magneto lead
COil tank breather hose
DRectifier/regulator lead
EBrake hose
FHose guideGCarburetor breather hose
HOverflow hose
ICoolant reservoir tank breather
hose
ÈInsert the fuel tank breather
hose into the hole in the steer-
ing shaft cap.
ÉUsing a plastic locking tie, fas-
ten the diode of the wire har-
ness (at the white tape) and the
neutral switch coupler to the
frame, and cut off the tie end.ÊFasten the wire harness, cool-
ant reservoir hose and hot
starter cable to the frame with a
plastic locking tie and cut off the
tie end.
ËFasten the wire harness and
coolant reservoir hose to the
frame with a plastic locking tie
and cut off the tie end.
ÌFasten the wire harness to the
frame at its white tape with a
plastic locking tie and cut off the
tie end.
2
Ù
B
BA
B-B
A
A
0Ò2
Ñ2 B ÓC Ô D
EFÕÖ2
×2F
1
È
2
É
3
2
Ê
452
Ë
2
Ì2
Í
6
7
Î
2
Ï
8
9
0
A 2
ÐØ GG
HI

2 - 24
SPECCABLE ROUTING DIAGRAM
ÍFasten the wire harness, TPS
lead (in the wire harness),
starter motor lead and negative
battery lead to the frame with a
plastic locking tie and cut off the
tie end.
ÎMake sure that the TPS coupler
does not go out the chassis.
ÏFasten the TPS lead to the
frame with a plastic band.
ÐFasten the neutral switch lead
and oil hose together with the
plastic locking ties and cut off
the tie ends.
ÑFasten the neutral switch lead
to the frame with a plastic band
ends outward.ÒFasten the neutral switch lead
and AC magneto lead to the
frame with a plastic band ends
outward.
ÓPass the oil tank breather hose
on the outside of the AC mag-
neto lead, neutral switch lead,
wire harness, rectifier/regulator
lead and cylinder head breather
hose.
ÔPass the wire harness on the
outside of the neutral switch
lead and AC magneto lead.
ÕPass the wire harness through
the cable guide.
ÖFasten the rectifier/regulator
lead to the cable guide with a
plastic locking tie and cut off the
tie end.×Fasten the AC magneto lead
and neutral switch lead to the
cable guide at their protecting
tube with a plastic locking tie.
ØPass the carburetor breather
hoses, overflow hose and cool-
ant reservoir tank breather
hose so that the hoses do not
contact the rear shock
absorber.
ÙUsing a plastic locking tie, fas-
ten the neutral switch lead to
the frame together with the CDI
unit lead on the right of the
frame and then cut off the tie
end.
2
Ù
B
BA
B-B
A
A
0Ò2
Ñ2 B ÓC Ô D
EFÕÖ2
×2F
1
È
2
É
3
2
Ê
452
Ë
2
Ì2
Í
6
7
Î
2
Ï
8
9
0
A 2
ÐØ GG
HI

2 - 25
SPECCABLE ROUTING DIAGRAM
1Hot starter cable
2Clutch cable
3Throttle cable (return)
4Throttle cable (pull)
5Ignition coil
6Negative battery lead
7Starter motor lead
8Coolant reservoir tank breather
hose
9Cable holder
0Coolant reservoir hose
AClamp
BCDI unit lead
CCDI unit
DCDI unit band
ECDI unit stay (frame)
FCable bracketÈPass the throttle cables, clutch
cable and hot starter cable
through the cable guides.
ÉPass the throttle cables, clutch
cable and hot starter cable
between the radiator and frame,
then over the middle radiator
mounting boss.
ÊPass the throttle cables and
clutch cable on the outside of
the ignition coil.
ËPass the carburetor breather
hose (throttle cable cover)
through the hose holder.
ÌFasten the coolant reservoir
tank breather hose and carbure-
tor breather hoses together with
a plastic locking tie.ÍFasten the grommet of the clutch
cable with the cable holder.
ÎFasten the CDI unit lead to the
frame with a plastic locking tie
ends at the lower of the frame
and cut off the tie end.
ÏInsert the CDI unit band over the
CDI unit stay (frame) as far as
possible.
ÐFasten the starter motor lead
and negative battery lead to the
cable bracket in its slot with a
plastic locking tie and cut off the
tie end.
A
A
D
ÏE A
Ð
B
B
C
F
Í90
ÎABCD
1
2
43
È
É
Ê
5
6 7 8 Ë Ì

2 - 27
SPECCABLE ROUTING DIAGRAM
1Starter motor lead
2Negative battery lead
3Wire harness
4Clamp
5Taillight lead
6Coolant reservoir tank breather
hose
7Coolant reservoir hose
8Positive battery lead
9Starting circuit cut-off relay
0BatteryÈPosition the starter motor lead,
negative battery lead and wire
harness in the tank damper slit.
ÉFasten the wire harness to the
frame with a plastic locking tie
and cut off the tie end.
ÊFasten the coolant reservoir
tank breather hose and coolant
reservoir hose to the frame with
a plastic locking tie.
ËDo not allow the taillight lead to
slacken.
ÌPass the starter motor lead and
negative battery lead over the
carburetor.
ÍFasten the coolant reservoir
tank breather hose and coolant
reservoir hose to the frame with
a plastic band.ÎPass the coolant reservoir hose
on the outside of the coolant
reservoir tank breather hose.
7Ì4
Í
5
Ë
4
Ê
7
6
È3
2
1
4
É
4
Í4
Í
Î 0
968
213
Zero ~ 10 mm
(Zero ~ 0.39 in)

3 - 3
INSP
ADJ
MAINTENANCE INTERVALS
* marked: For USA
FRONT FORKS
Inspect and adjust
Replace oil Suspension oil “S1”
Replace oil seal
FRONT FORK OIL SEAL AND DUST
SEAL
Clean and lube Lithium base grease
PROTECTOR GUIDE
Replace
REAR SHOCK ABSORBER
(After
rain ride)
Inspect and adjust
Lube
Molybdenum disulfide
grease
Retighten
DRIVE CHAIN GUARD AND ROLL-
ERS
Inspect
DRIVE CHAIN STOPPER
Inspect
SWINGARM
Molybdenum disulfide
grease
Inspect, lube and retighten
RELAY ARM, CONNECTING ROD
Molybdenum disulfide
grease
Inspect, lube and retighten
SIDESTAND
Lubricate Lithium base grease
STEERING HEAD
Inspect free play and retighten
Clean and lube Lithium base grease
Replace bearing
TIRE, WHEELS
Inspect air pressure, wheel run-out,
tire wear and spoke looseness
Retighten sprocket bolt
Inspect bearings
Replace bearings
Lubricate Lithium base grease
THROTTLE, CONTROL CABLE
Yamaha cable lube or
SAE 10W-30 motor oil Check routing and connection
Lubricate
HOT STARTER, CLUTCH LEVER
Inspect free play
BATTERY
Check terminal for looseness and
corrosionItemAfter
break-inEvery
race
Every
third
(or
500 km)Every
fifth
(or
1,000 km)As re-
quiredRemarks