Page 15 of 396

OPERATION ............................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine .........................6-9
Warming up...........................................6-9
Drive select lever operation and
reverse driving ..................................6-11
Shifting ................................................6-15
To start out and accelerate .................6-17
To decelerate ......................................6-21
Engine break-in ...................................6-23
Parking ................................................6-27
Parking on a slope ..............................6-27
Accessories and loading .....................6-31
RIDING YOUR ATV..................................7-1
Getting to know your ATV .....................7-3
Ride with care and good judgement .....7-5
Be careful where you ride ...................7-27
Turning your ATV ................................7-41
Climbing uphill.....................................7-47
Riding downhill ....................................7-57
Crossing a slope .................................7-61
Crossing through shallow water ..........7-65
Riding over rough terrain ....................7-69
Sliding and skidding ............................7-71
What to do if ........................................7-75
What to do...........................................7-75
67
PERIODIC MAINTENANCE AND
ADJUSTMENT ......................................... 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication.......... 8-7
Engine oil and oil filter element........... 8-17
Spark plug inspection ......................... 8-29
Air filter element cleaning ................... 8-33
Carburetor adjustment ........................ 8-41
Idle speed adjustment ........................ 8-43
Throttle lever adjustment .................... 8-45
Valve clearance adjustment ............... 8-45
Front brake pad inspection ................. 8-47
Rear brake pad inspection.................. 8-47
Brake fluid level check ........................ 8-49
Brake fluid replacement ...................... 8-53
Front brake lever free play.................. 8-55
Brake pedal height adjustment ........... 8-57
Parking brake adjustment ................... 8-59
Adjusting the rear brake light switch ... 8-65
Clutch lever free play adjustment ....... 8-67
Drive chain slack check ...................... 8-69
Drive chain slack adjustment .............. 8-71
Lubricating the drive chain.................. 8-73
Cable inspection and lubrication......... 8-75
Brake and shift pedal/brake and
clutch lever lubrication ...................... 8-75
8
U5YT61.book Page 2 Wednesday, April 7, 2004 3:59 PM
Page 114 of 396
5-5
EBU01167
Front and rear brakes
Brake lever and brake pedal
Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
inspect the brake system.
Check for correct brake pedal height. (See
page 8-57.) If the pedal height is incorrect,
have a Yamaha dealer adjust it.
Check the operation of the brake lever and
brake pedal. They should move smoothly and
there should be a firm feeling when the brakes
are applied. If not, have a Yamaha dealer in-
spect the brake system.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See pages 8-49–8-53.)
Recommended brake fluid: DOT 4
U5YT61.book Page 5 Wednesday, April 7, 2004 3:59 PM
Page 308 of 396
8-57 a. Brake pedal position
a. Position de la pédale de frein
a. Posición del pedal de freno
EBU14971
Brake pedal height adjustment
The top of the brake pedal should be positioned
50.2 mm above the top of the frame as shown. If
the brake pedal is not positioned as specified,
have a Yamaha dealer adjust it.
WARNING
_ Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident. After servic-
ing:
Make sure the brakes operate smoothly
and that the brake pedal position is cor-
rect.
Make sure the brakes do not drag.
Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
_
U5YT61.book Page 57 Wednesday, April 7, 2004 3:59 PM
Page 374 of 396
10-1
EBU00428
SPECIFICATIONS
MODEL YFM350R
Dimension:
Overall length
Overall width
Overall height
Seat height
Wheel base
Ground clearance
Minimum turning radius1,770 mm
1,095 mm
1,080 mm
820 mm
1,210 mm
115 mm
3,100 mm
Basic weight:
With oil and full fuel tank 180.0 kg
Engine:
Type
Cylinder arrangement
Displacement
Bore
× Stroke
Compression ratio
Starting system
Lubrication systemAir-cooled, 4-stroke, SOHC
Forward inclined single cylinder
349.0 cm
3
83.0
× 64.5 mm
9.20 : 1
Electric starter
Wet sump
U5YT61.book Page 1 Wednesday, April 7, 2004 3:59 PM