2012 YAMAHA GRIZZLY 350 brake fluid

Starting a warm engine .............................. 6-3
Operating the drive select lever and driving in reverse ...................................... 6-3
Engine break-in .......................................... 6-4
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-5
Accessories and loading ............................ 6-6
RIDING YOUR ATV ...................................... 7-1 GETTING TO KNOW YOUR ATV............... 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-17
CROSSING THROUGH SHALLOW WATER ................................................... 7-18
RIDING OVER ROUGH TERRAIN ........... 7-21
SLIDING AND SKIDDING ......................... 7-21
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1 Owner’s manual and tool kit ....................... 8-2 Periodic maintenance chart for the
emission control system ...........................8-3
General maintenance and lubrication chart ..........................................................8-5
Checking the spark plug .............................8-9
Engine oil and oil filter cartridge ................8-11
Final gear oil .............................................8-15
Changing the differential gear oil ..............8-18
Cleaning the air filter element ...................8-19
Cleaning the spark arrester ......................8-22
V-belt cooling duct check hose .................8-24
V-belt case drain plug ...............................8-24
Adjusting the carburetor ............................8-25
Adjusting the engine idling speed .............8-25
Adjusting the throttle lever free play .........8-26
Valve clearance ........................................8-27
Adjusting the drive select lever safety system cable ...........................................8-27
Brakes .......................................................8-27
Checking the front brake pads and rear brake shoes ............................................8-27
Checking the brake fluid level ...................8-29
Changing the brake fluid ...........................8-30
Checking the front brake lever free play ...8-30
Adjusting the brake pedal height, and the brake pedal and rear brake lever free
play .........................................................8-30
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5-2
5
Front brake
Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
 Check brake pads for wear, and replace if necessary.
 Check brake fluid level in reservoir, and add specified brake fluid to
specified level if necessary.
 Check hydraulic system for leakage. Correct if necessary. 5-3, 8-27, 8-29, 8-30
Rear brake 
Check operation, and correct if necessary.
 Lubricate cables if necessary.
 Check lever and pedal free play, and adjust if necessary. 5-3, 8-27, 8-30
Throttle lever 
Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.
 Check lever free play, and adjust if necessary. 5-4, 8-26
Control cables Make sure that operation is smooth. Lubricate if necessary. 8-36
Wheels and tires 
Check wheel condition, and replace if damaged.
 Check tire condition and tread depth. Replace if necessary.
 Check air pressure. Correct if necessary. 5-4
Brake pedal 
Make sure that operation is smooth. Lubricate pedal pivoting point if
necessary. 8-37
Brake levers 
Make sure that operation is smooth. Lubricate lever pivoting points if
necessary. 8-37
Axle boots Check for cracks or damage, and replace if necessary. 8-35
Chassis fasteners Make sure that all nuts, bolts and screws are properly tightened. 5-6
Instruments, lights and
switches 
Check operation, and correct if necessary. 5-6
ITEM ROUTINE PAGE
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5-3
5
EBU19541Fuel Make sure that there is sufficient fuel in the tank.
(See page 4-10.)EBU19560Engine oil Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-11.)EBU19590Final gear oil Make sure that the final gear oil is at the specified
level. Add oil as necessary. (See page 8-15.)EBU19600Differential gear oil Make sure that the differential gear oil is at the
specified level. Add oil as necessary. (See page
8-18.)EBU27672Front and rear brakes Brake levers and brake pedal
Check that there is no free play in the front brake
lever. If there is free play, have a Yamaha dealer
check the brake system.

Check for correct free play in the rear brake lever
and brake pedal. If the free play is incorrect, ad-
just it. (See page 8-30.)
Check operation of the levers and pedal. They
should move smoothly and there should be a
firm feeling when the brake is applied. If not,
have a Yamaha dealer check them.
Brake fluid level (front brake)
Check the brake fluid level. Add fluid if necessary.
(See page 8-29.)
Brake fluid leakage (front brake)
Check to see if any brake fluid is leaking out of the
hose, joint or brake fluid reservoir of the front
brake. Apply the brake firmly for one minute. If the
lever moves slowly inward, there may be a leak in
the brake system. If there is any leakage, the brake
system should be checked by a Yamaha dealer. Specified brake fluid:
DOT 4
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8-5
8
EBU21865General maintenance and lubrication chart TIP
For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.NO. ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 Air filter element Clean and replace if necessary. Every 20
–40 hours (more often in wet or
dusty areas)
2 *Front brake 
Check operation and correct if necessary.
 Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
 Replace brake pads. Whenever worn to the limit
3 *Rear brake 
Check operation and correct if necessary.
 Check brake lever and pedal free play, and adjust
if necessary. √√√√√
 Replace brake shoes. Whenever worn to the limit
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8-8
8
EBU28391TIP
Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
 Every two years replace the internal components of the brake master cylinder and calipers, and change
the brake fluid.
 Replace the brake hoses every four years and if cracked or damaged.23 *Front and rear brake
switches 
Check operation and correct if necessary. √√√√√
24 *Lights and switches 
Check operation and correct if necessary.
 Adjust headlight beams. √√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1NS60E0.book Page 8 Monday, August 1, 2011 4:12 PM

8-29
8
EBU29841Checking the brake fluid level Before riding, check that the brake fluid is above
the minimum level mark. Check the brake fluid lev-
el with the top of the reservoir level. Replenish the
brake fluid if necessary.
WARNING
EWB02720Improper maintenance can result in loss of
braking ability. Observe these precautions:

Insufficient brake fluid may allow air to enter
the brake system, reducing braking perfor-
mance.
Clean the filler cap before removing. Use
only DOT 4 brake fluid from a sealed contain-
er.
Use only the specified brake fluid; otherwise,
the rubber seals may deteriorate, causing
leakage.
Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
Be careful that water does not enter the
brake fluid reservoir when refilling. Water
will significantly lower the boiling point of
the fluid and may result in vapor lock.NOTICEECB01160Brake fluid may damage painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.As the brake pads wear, it is normal for the brake
fluid level to gradually go down. A low brake fluid
level may indicate worn brake pads and/or brake
system leakage; therefore, be sure to check the
1. Minimum level markSpecified brake fluid:DOT 4
1
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8-30
8brake pads for wear and the brake system for leak-
age. If the brake fluid level goes down suddenly,
have a Yamaha dealer check the cause before fur-
ther riding.
EBU24281Changing the brake fluid Have a Yamaha dealer change the brake fluid at
the intervals specified in the TIP after the periodic
maintenance and lubrication chart. In addition,
have the oil seals of the brake master cylinder and
calipers as well as the brake hoses replaced at the
intervals listed below or whenever they are dam-
aged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.EBU24394Checking the front brake lever free play The brake lever free play must be checked at the
intervals specified in the periodic maintenance and
lubrication chart. The brake lever should have no
free play as shown. If there is free play, have a
Yamaha dealer check the brake system.
EBU30690Adjusting the brake pedal height, and
the brake pedal and rear brake lever
free play The brake pedal height, brake pedal free play, and
rear brake lever free play must be checked and, if
necessary, adjusted at the intervals specified in the
periodic maintenance and lubrication chart.TIP
Always perform this maintenance completely in
the following order whenever adjusting the rear
brake.1. No brake lever free play
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10-4
10
Operation:Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:Drum brake
Operation: Left hand and right foot operationFront suspension:Type:Double wishbone
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
160 mm (6.3 in)Rear suspension:Type:Swingarm
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 180 mm (7.1 in)Electrical system:Ignition system:
DC CDI
Charging system: AC magnetoBattery:Model:
YTX14AH Voltage, capacity:
12 V, 12.0 Ah
Headlight:Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Meter lighting: 14 V, 3.0 W × 1
Neutral indicator light: 12 V, 1.7 W × 1
Reverse indicator light:
12 V, 1.7 W × 1
Oil temperature warning light: 12 V, 1.7 W × 1
On-command four-wheel-drive indicator light: 12 V, 1.7 W × 1Fuses:Main fuse:
30.0 A
Headlight fuse: 15.0 A
Signaling system fuse:
10.0 A
Ignition fuse: 15.0 A
Auxiliary DC jack fuse: 10.0 A
U1NS60E0.book Page 4 Monday, August 1, 2011 4:12 PM