Page 128 of 264
6-11
EBU00198
Shifting
This model has a 6-speed forward transmission.
The transmission allows you to control the
amount of power you have available at a given
speed or for starting, accelerating, climbing hills,
etc. To shift into neutral, return the throttle lever
to its original position, apply the clutch and
repeatedly depress the shift pedal until it stops.
When it stops, it will be in first gear. Raise the
pedal slightly to neutral.
N
1 2 3 4 5 6
N. Neutral
N. Point mort
N. Punto muerto
Page 130 of 264
6-13
cC
1. Do not coast for long periods with the
engine off, and do not tow the machine a
long distance. Even in neutral position,
the transmission is only properly lubri-
cated when the engine is running. Inade-
quate lubrication may cause damage.
2. Always use the clutch when changing
gears. The engine, transmission and
drive train are not designed to withstand
the shock of forced shifting and can be
damaged by shifting without the clutch.
Page 132 of 264
6-15
EBU00204
To start out and accelerate
1. Release the throttle lever.
cC
Always close the throttle while shifting
gears. Otherwise, damage to the engine and
drive train may result.
2. Pull the clutch lever to disengage the clutch.
3. Shift into first gear.
4. Open the throttle gradually and at the same
time, release the clutch lever slowly.
5. Once the machine has attained adequate
speed, release the throttle, and at the same
time, quickly pull in the clutch lever.
6. Shift into second gear. (be careful not to
shift into neutral)
Page 134 of 264
6-17
7. Open the throttle part way and gradually
release the clutch lever.
8. Follow the same procedure when shifting to
the next higher gear.
w
Opening the throttle abruptly or releasing the
clutch lever too quickly would increase the
chance of an accident or could make the
machine wheelie including overturn. Always
open the throttle gradually and release the
clutch lever gradually.
Page 144 of 264
6-27
EBU00214
Parking on a slope
w
Avoid parking on hills or other inclines.
Parking on a hill or other incline could cause
the ATV to roll out of control, increasing the
chance of an accident. If you must park on
an incline, put the machine in low gear, apply
the parking brake, and block the front and
rear wheels with rocks or other objects.
Do not park the ATV at all on hills that are so
steep you could not walk up them easily.
1. Bring the machine to a stop by applying the
brakes in low gear.
2. Stop the engine and release the clutch
lever.
3. With the front and rear brakes applied, apply
the parking brake and slowly release the
rear brake pedal.
Page 192 of 264

7-37
With the engine idling, pull the clutch lever to dis-
engage the clutch and shift into 1st gear, and then
release the parking brake. Open the throttle grad-
ually, and at the same time, release the clutch
lever slowly. Once the ATV has attained adequate
speed, release the throttle lever and at same time,
quickly pull in the clutch lever and shift into 2nd
gear. Open the throttle part way and gradually
release the clutch. Use this same procedure as
you move into the higher gears. Be sure to coordi-
nate the use of the throttle and shift pedal proper-
ly. If the throttle is applied too abruptly or if the
throttle is not released during shifting, or if the shift
pedal is not released before applying the throttle,
the front wheels may lift off the ground resulting in
a loss of directional control. Avoid higher speeds
until you are thoroughly familiar with the operation
of your ATV.
w
Always open the throttle gradually and
release the clutch lever slowly. Otherwise,
the machine could wheelie which would
increase the chance of an accident.
Page 247 of 264
10-2
Model YFZ350
Engine oil (2-cycle):
Type Yamalube R, Castrol R30, A545, A747
Mixing ratio See page 5-15.
Transmission oil:
Type SAE10W-30
Rcommended transmission oil classification: API Service SE, SF, SG type or higher
Quantity
Periodic oil change 1.5 L
Total amount 1.7 L
Radiator:
(Including all routes) 1.5 L
Air filter: Wet type element
10
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “Energy Conserving”)
contain anti-friction additives which will
cause clutch and/or starter clutch slippage,
resulting in reduced component life and poor
engine performance.
Page 248 of 264
10-3
Model YFZ350
Fuel:
Type Premium unleaded fuel, Premix
Tank capacity 12.0 L
Reserve amount 2.5 L
Carburetor:
Type/quantity VM26SS/2
Manufacturer MIKUNI
Spark plug:
Type/Manufacturer BR8ES/NGK
Spark plug gap 0.7 ~ 0.8 mm
Clutch type: Wet, multiple-disc
Transmission:
Primary reduction system Helical gear
Primary reduction ratio 66/23 (2.869)
Secondary reduction system Chain drive
Secondary reduction ratio 41/14 (2.929)
Transmission type Constant mesh 6-speed
Operation Left foot operation