YAMAHA GRIZZLY 550 2012 Service Manual

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crease the maximum engine power available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b). Do not turn
the adjusting screw out more than 12 mm
(0.47 in) or the throttle cable could be dam-
aged. Always make sure the throttle lever free
play is adjusted to 3.0
–5.0 mm (0.12 –0.20 in).
(See page 8-45.) WARNING! Improper ad-
justment of the speed limiter and throttle
could cause throttle cable damage or im-
proper throttle operation. You could lose
control, resulting in an accident.
[EWB00241]
3. Tighten the locknut.
EBU18391Front brake lever The front brake lever is located on the right handle-
bar. To apply the front brake, pull the brake lever
toward the handlebar grip.EBU18442Brake pedal and rear brake lever The brake pedal is located on the right side of the
ATV and the rear brake lever is located on the left
handlebar. To apply the rear brake, push down on
the brake pedal or pull the brake lever toward the
handlebar grip.
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)
2
1
3
(b)
(a)
1. Front brake lever
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4
EBU18611Drive select lever The drive select lever is used to shift your ATV into
the low-range, high-range, neutral, reverse and
park positions. See the “Operating the drive select
lever and driving in reverse ” section on page 6-2
for the drive select lever operation.EBU27350Fuel tank cap To remove the fuel tank cap
Open the fuel tank cap cover, and then remove the
fuel tank cap by turning it counterclockwise.
1. Brake pedal
1. Rear brake lever
1. Drive select lever
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4
To install the fuel tank cap
Install the fuel tank cap by turning it clockwise until
a click is heard, and then close the fuel tank cap
cover.
EBU18754Fuel Make sure there is sufficient gasoline in the tank.
WARNING
EWB02521Gasoline and gasoline vapors are extremely
flammable. To avoid fires and explosions and
to reduce the risk of injury when refueling, fol-
low these instructions.1. Before refueling, turn off the engine and be
sure that no one is sitting on the vehicle. Nev-
er refuel while smoking, or while in the vicinity
of sparks, open flames, or other sources of ig-
nition such as the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the pump nozzle into the fuel
tank filler hole. Stop filling when the fuel reach-
es the bottom of the filler tube. Because fuel
1. Fuel tank cap cover
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4expands when it heats up, heat from the en-
gine or the sun can cause fuel to spill out of
the fuel tank.
3. Wipe up any spilled fuel immediately.
NOTICE: Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since fuel may
deteriorate painted surfaces or plastic
parts.
[ECB00981]
4. Turn the fuel tank cap fully clockwise to make sure it is securely closed.
WARNING
EWB02531Gasoline is poisonous and can cause injury or
death. Handle gasoline with care. Never siphon
gasoline by mouth. If you should swallow
some gasoline or inhale a lot of gasoline vapor,
or get some gasoline in your eyes, see your
doctor immediately. If gasoline spills on your
skin, wash with soap and water. If gasoline
spills on your clothing, change your clothes.NOTICEECB00070Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system.
1. Maximum fuel level
2. Fuel tank filler tubeRecommended fuel:UNLEADED GASOLINE ONLY
For Europe: Regular unleaded gasoline only
with a research octane number of 91 or
higher
Fuel tank capacity: 20.0 L (5.28 US gal, 4.40 Imp.gal)
Fuel reserve amount: 4.5 L (1.19 US gal, 0.99 Imp.gal)
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Your Yamaha engine has been designed to use
regular unleaded gasoline with a research octane
number of 91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand. Use of un-
leaded fuel will extend spark plug life and reduce
maintenance costs.
EBU18881Seat To remove the seat
Pull the seat lock lever upward and pull up the seat
at the rear. To install the seat
Insert the projections on the front of the seat into
the seat holders and push down on the seat at the
rear. Make sure that the seat is securely fitted.
EBU27362Storage compartments This ATV is equipped with two storage compart-
ments.
1. Seat
2. Seat lock lever
1. Projection
2. Seat holder
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NOTICEECB00830Do not store metal or sharply edged objects,
like tools, in the storage compartments. If they
must be stored, wrap them in appropriate
cushion material to prevent damaging the stor-
age compartments.The front storage compartment is located at the
front right side of the ATV. To access the storage
compartment, remove the storage compartment
cover by turning it counterclockwise.The rear storage compartment is located under the
seat. (See page 4-18.) To access the storage com-
partment, remove the storage compartment cover.1. Front storage compartment cover
1. Front storage compartment
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4
When storing any documents in the storage com-
partments, be sure to wrap them in a plastic bag so
that they will not get wet. When washing the ATV,
be careful not to let any water enter the storage
compartments.

Do not exceed the load limit of 0.5 kg (1 lb) for
the front storage compartment or 2.0 kg (4 lb) for
the rear storage compartment.
Do not exceed the maximum load of 220.0 kg
(485 lb) for the ATV.TIPA drain plug is fitted at the bottom of each storage
compartment. If any water collects in a storage
compartment, remove the drain plug, drain the wa-
ter, and then install the drain plug.
1. Rear storage compartment cover
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EBU18962Front carrier
Do not exceed the load limit of 45.0 kg (99 lb) for
the front carrier.
Do not exceed the maximum load of 220.0 kg
(485 lb) for the ATV.EBU18972Rear carrier
Do not exceed the load limit of 85.0 kg (187 lb)
for the rear carrier.
Do not exceed the maximum load of 220.0 kg
(485 lb) for the ATV.EBU30470Adjusting the front and rear shock ab-
sorber assemblies The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
WARNING
EWB00400Always adjust the shock absorber assemblies
on the left and right side to the same setting.
Uneven adjustment can cause poor handling
and loss of stability, which could lead to an ac-
cident.
1. Storage compartment drain plug
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Adjust the spring preload as follows.
Turn the spring preload adjusting ring in direction
(a) to increase the spring preload and thereby
harden the suspension, and in direction (b) to de-
crease the spring preload and thereby soften the
suspension.
Align the appropriate notch in the adjusting ring
with the position indicator on the shock absorber.
TIPA special wrench can be obtained at a Yamaha
dealer to make this adjustment.
WARNING
EWB02730The rear shock absorber assembly contains
highly pressurized nitrogen gas. If the shock
absorber assembly is damaged, it could ex-
plode causing injury or property damage.
1. Spring preload adjusting ring
2. Position indicator
1. Special wrenchSpring preload setting:
Minimum (soft):1
Standard: 2
Maximum (hard): 5
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4Shock absorber cylinder damage could also
result in poor handling which could cause an
accident.

Do not tamper with or attempt to open the
cylinder assembly.
Do not subject the shock absorber assembly
to an open flame or other high heat.
Do not deform or damage the cylinder in any
way.
Do not dispose of a damaged or worn out
shock absorber assembly yourself. Take the
shock absorber assembly to a Yamaha deal-
er for any service.EBU19183Auxiliary DC jack The auxiliary DC jack is located at the front right
side of the ATV. The auxiliary DC jack can be used
for suitable work lights, radios, etc. The auxiliary
DC jack should only be used when the engine is
running and the light switch is set to
“OFF ”.
1. Set the light switch to “ OFF”.
2. Turn the accessory off.
3. Start the engine. (See page 6-1.)
4. Open the auxiliary DC jack cap, and then in- sert the accessory power plug into the jack.
1. Auxiliary DC jack cap
1. Auxiliary DC jack
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