tow YAMAHA WR 450F 2007 Manuale de Empleo (in Spanish)

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GEN
INFO
CONTROL FUNCTIONS
EC152000
CLUTCH LEVER
The clutch lever 1 is located on the left han-
dlebar; it disengages or engages the clutch.
Pull the clutch lever to the handlebar to disen-
gage the clutch, and release the lever to
engage the clutch. The lever should be pulled
rapidly and released slowly for smooth starts.
EC153000
SHIFT PEDAL
The gear ratios of the constant-mesh 5 speed
transmission are ideally spaced. The gears
can be shifted by using the shift pedal 1 on
the left side of the engine.
EC154000
KICKSTARTER
Rotate the kickstarter 1 away from the
engine. Push the starter down lightly with your
foot until the gears engage, then kick smoothly
and forcefully to start the engine. This model
has a primary kickstarter so the engine can be
started in any gear if the clutch is disengaged.
In normal practices, however, shift to neutral
before starting.
1
EC155001
THROTTLE GRIP
The throttle grip 1 is located on the right han-
dlebar; it accelerates or decelerates the
engine. For acceleration, turn the grip toward
you; for deceleration, turn it away from you.
EC156000
FRONT BRAKE LEVER
The front brake lever 1 is located on the right
handlebar. Pull it toward the handlebar to acti-
vate the front brake.

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GEN
INFO
CLEANING AND STORAGE
EC1B0000
CLEANING AND STORAGE
EC1B1000
CLEANING
Frequent cleaning of your machine will
enhance its appearance, maintain good overall
performance, and extend the life of many com-
ponents.
1. Before washing the machine, block off the
end of the exhaust pipe to prevent water
from entering. A plastic bag secured with a
rubber band may be used for this purpose.
2. If the engine is excessively greasy, apply
some degreaser to it with a paint brush. Do
not apply degreaser to the chain, sprock-
ets, or wheel axles.
3. Rinse the dirt and degreaser off with a gar-
den hose; use only enough pressure to do
the job.
CAUTION:
Excessive hose pressure may cause water
seepage and contamination of wheel bear-
ings, front forks, brakes and transmission
seals. Many expensive repair bills have
resulted from improper high pressure
detergent applications such as those avail-
able in coin-operated car washers.
4. After the majority of the dirt has been
hosed off, wash all surfaces with warm
water and a mild detergent. Use an old
toothbrush to clean hard-to-reach places.
5. Rinse the machine off immediately with
clean water, and dry all surfaces with a soft
towel or cloth.
6. Immediately after washing, remove excess
water from the chain with a paper towel
and lubricate the chain to prevent rust.
7. Clean the seat with a vinyl upholstery
cleaner to keep the cover pliable and
glossy.

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SPECCABLE ROUTING DIAGRAM
ÈInsert the end of the fuel tank breather hose into
the hole in the steering stem.
ÉFasten the throttle cable, hot starter cable and
rectifier/regulator lead onto the frame. Locate
the clamp end facing the lower side of the hot
starter cable and cut off the tie end.
ÊFasten the diode (at the marking), throttle cable
and hot starter cable onto the frame. Locate the
clamp end facing toward the lower right of the
frame and with the tie end facing downward.
ËFasten the wire harness, throttle position sensor
lead and clutch cable onto the frame. Pass the
clamp through the hole in the stay (air cut-off
valve). Locate the clamp end facing toward the
lower side of the frame and cut off the tie end.ÌFasten the throttle position sensor lead onto the
frame. Locate the clamp end facing toward the
lower side of the frame and cut off the tie end.
ÍPass the carburetor breather hoses, carburetor
overflow hose and catch tank breather hose
between the connecting rod and cross tube
(frame).
ÎPass the neutral switch lead on the inside of the
engine bracket.
ÏFasten the neutral switch lead and AC magneto
lead onto the frame. Locate the clamp end fac-
ing toward the outside of the frame and tie end
facing toward the rear of the frame.

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SPECCABLE ROUTING DIAGRAM
ÐFasten the AC magneto lead and neutral switch
lead onto the frame. Locate the clamp end fac-
ing toward the rear of the frame and cut off the
tie end.
ÑPass the neutral switch lead and AC magneto
lead on the inside of the wire harness.
ÒFasten the AC magneto lead and neutral switch
lead onto the frame.
ÓPass the wire harness through the cable guide.
ÔLocate the couplers in the frame recess.
ÕPass the carburetor breather hoses, carburetor
overflow hose and catch tank breather hose so
that the hoses do not contact the rear shock
absorber.
ÖSecure the coupler by pushing it into the hole inthe headlight unit.

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SPECCABLE ROUTING DIAGRAM
1Throttle cable (pull)
2Throttle cable (return)
3Catch tank hose
4Ignition coil
5Clamp
6Air induction hose (air cut-off valve - rear of cyl-
inder head)
7Catch tank breather hoseÈCross the pull and push throttle cables.
ÉFasten the catch tank hose and air induction
hose (air cut-off valve - rear of cylinder head)
onto the frame. Locate the clamp end facing
toward the lower side of the frame and cut off the
tie end.
ÊFasten the catch tank breather hose and carbu-
retor breather hoses together.
ËPass the carburetor breather hose (of the throt-
tle cable cover) through the hose holder.

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SPECCABLE ROUTING DIAGRAM
1Clamp
2Positive battery lead
3Battery
4Negative battery lead
5Taillight coupler
6CDI unit coupler (6-pin)
7CDI unit coupler (3-pin)
8CDI unit coupler (6-pin)ÈFasten the wire harness to the upper engine
bracket (left side). Locate the clamp end facing
toward the upper side of the frame with the tie
end cut off on the inside of the frame.
ÉFasten the wire harness to the upper engine
bracket (left side). Locate the clamp end facing
toward the upper side of the frame with the tie
end cut off on the inside of the frame. Clamp the
wire harness at the marking.
ÊPass the starter motor lead through the hole in
the relay holder.
ËFit the cover securely.
ÌConnect the wire harness to the starter relay.

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SPECCABLE ROUTING DIAGRAM
ÍFasten the catch tank breather
hose and catch tank hose to the
rear frame. Clamp them close
to where they are joined to the
frame. Fasten the pipe tightly
enough not to crush it. Locate
the clamp end facing toward the
rear of the frame with the tie
end facing downward.
ÎFasten the (three) CDI unit
leads and taillight lead to the
rear frame. Locate the clamp
end facing toward the upper
side of the frame and cut off the
tie end.
ÏConnect the negative battery
lead to the battery negative ter-
minal.
ÐConnect the negative battery
lead to the wire harness.ÑFasten the wire harness to the
rear frame. Locate the clamp
end facing toward the upper
side of the frame and the tie
end toward the inside of the
frame. Clamp the wire harness
at the marking.
ÒPass the wire harness, starter
relay lead, starting circuit cut-off
relay lead and negative battery
lead through the hole in the
relay holder.
ÓFasten the (three) CDI unit
leads and taillight lead to the
rear frame. Locate the clamp
end facing toward the lower
side of the frame and cut off the
tie end.ÔFasten the taillight lead to the
rear frame. Locate the clamp
end facing toward the upper
side of the frame and cut off the
tie end.
ÕDo not allow the taillight lead to
slacken.
ÖLocate the CDI unit lead
between the CDI unit and rear
fender.
×Locate the CDI unit coupler in
the clearance between the
upper side of the CDI unit and
lower side of the catch tank
stay.
ØLocate the CDI unit lead
between the CDI unit and rear
frame.

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SPECCABLE ROUTING DIAGRAM
ÈFasten the start switch lead to the handlebar
with the plastic bands.
ÉFasten the engine stop switch lead and clutch
switch lead to the handlebar with the plastic
bands.
ÊPass the brake hose through the hose guides.
ËSecure the coupler by inserting it into the multi-
function display bracket.
ÌPass the throttle cables, clutch cable and hot
starter cable between the upper bracket and
multi-function display bracket.
ÍFasten the multi-function display leads to the
bracket. Cut off the tie end.
ÎSecure the coupler by pushing it into the hole in
the multi-function display bracket.
ÏSecure the wire harness clip by pushing it into
the hole in the multi-function display bracket on
the inside.ÐFasten the main switch lead (wire harness side)
to the multi-function display bracket. Locate the
clamp end facing toward the lower side of the
frame and cut off the tie end.
ÑPass the speed sensor lead through the guide
on the outside of the front fork.

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INSP
ADJ
EC350000
ENGINE
COOLANT LEVEL INSPECTION
WARNING
Do not remove the radiator cap
1, drain
bolt and hoses when the engine and radia-
tor are hot. Scalding hot fluid and steam
may be blown out under pressure, which
could cause serious injury.
When the engine has cooled, place a thick
towel over the radiator cap, slowly rotate
the cap counterclockwise to the detent.
This procedure allows any residual pres-
sure to escape. When the hissing sound
has stopped, press down on the cap while
turning counterclockwise and remove it.
CAUTION:
Hard water or salt water is harmful to the
engine parts. You may use distilled water, if
you can’t get soft water.
1. Place the machine on a level place, and
hold it in an upright position.
2. Remove:
Radiator cap
3. Check:
Coolant level a
Coolant level low → Add coolant.
1Radiator
COOLANT REPLACEMENT
WARNING
Do not remove the radiator cap when the
engine is hot.
ENGINE/COOLANT LEVEL INSPECTION/
COOLANT REPLACEMENT

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INSP
ADJ
CHASSIS/BRAKE SYSTEM AIR BLEEDING
EC360000
CHASSIS
EC361012
BRAKE SYSTEM AIR BLEEDING
WARNING
Bleed the brake system if:
The system has been disassembled.
A brake hose has been loosened or
removed.
The brake fluid is very low.
The brake operation is faulty.
A dangerous loss of braking performance
may occur if the brake system is not prop-
erly bled.
1. Remove:
Master cylinder cap
Diaphragm
Reservoir float (front brake)
Protector (rear brake)
2. Bleed:
Brake fluid
ÈFront
ÉRear
Air bleeding steps:
a. Add proper brake fluid to the reservoir.
b. Install the diaphragm. Be careful not to
spill any fluid or allow the reservoir to
overflow.
c. Connect the clear plastic tube 2 tightly to
the caliper bleed screw 1.
d. Place the other end of the tube into a con-
tainer.
e. Slowly apply the brake lever or pedal sev-
eral times.
f. Pull the lever in or push down on the
pedal. Hold the lever or pedal in position.
g. Loosen the bleed screw and allow the
lever or pedal to travel towards its limit.
h. Tighten the bleed screw when the lever or
pedal limit has been reached; then
release the lever or pedal.
T R..
Bleed screw:
6 Nm (0.6 m  kg, 4.3 ft  lb)
i. Repeat steps (e) to (h) until of the air bub-
bles have been removed from the sys-
tem.
È
É