2009 YAMAHA YFM250R suspension

4-11
1
2
34
5
6
7
8
9
10
11

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.
TIP

Make sure that the seat is securely fitted.
EBU18990
Adjusting the front shock absorber
assemblies
The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
Adjust the spring preload as follows.
Turn the adjusting ring in direction (a) to increase
the spring preload and thereby harden the suspen-
sion, and in direction (b) to decrease the spring
preload and thereby soften the suspension.
1. Seat lock lever
1

1. Projection
2. Seat holder
1
2

4-12
1
2
34
5
6
7
8
9
10
11
TIP

A special wrench can be obtained at a Yamaha
dealer to make this adjustment.
WARNING
EWB00400
Always 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.
EBU28240
Adjusting the rear shock absorber
assembly
The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
Adjust the spring preload as follows.
1. Loosen the locknut.
2. Turn the adjusting nut in direction (a) to in-
crease the spring preload and thereby harden
the suspension, and in direction (b) to de-
crease the spring preload and thereby soften
the suspension.
1. Spring preload adjusting ring
2. Special wrench
3. Position indicator
Spring preload setting:
Minimum (soft):
A
Standard:
B
Maximum (hard):
E
(a)
(b)1
2
3
A
B
C
D
E
3

10-4
1
2
3
4
5
6
7
8
910
11

Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
190 mm (7.5 in)
Rear suspension:
Type:
Swingarm
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
200 mm (7.9 in)
Electrical system:
Ignition system:
DC. CDI
Charging system:
AC magneto
Battery:
Model:
YTZ7SVoltage, capacity:
12 V, 6.0 Ah
Headlight:
Bulb type:
Krypton bulb
Bulb voltage, wattage
×
quantity:
Headlight:
12 V, 30.0/30.0 W
×
2
Tail/brake light:
12 V, 5.0/21.0 W
×
1
Neutral indicator light:
12 V, 1.7 W
×
1

Fuse:
Fuse:
15.0 A

Light switch .....................................................................4-2
M
Main switch .....................................................................4-1
Maintenance and lubrication chart ..................................8-5
Maintenance chart, emission control system ..................8-3
Model label....................................................................11-2
N
Neutral indicator light ......................................................4-1
O
Owner’s manual and tool kit............................................8-1
P
Parking ............................................................................6-5
Parking brake free play, adjusting.................................8-27
Parking brake lever .........................................................4-5
Parking on a slope ..........................................................6-6
Part locations ..................................................................3-1
Pre-operation check list ..................................................5-1
R
Riding your ATV ..............................................................7-1
S
Safety information ...........................................................1-1
Seat...............................................................................4-10
Shifting ............................................................................6-3
Shift pedal .......................................................................4-6
Shift pedal, checking .....................................................8-34
Shock absorber assemblies, adjusting the front ...........4-11
Shock absorber assembly, adjusting the rear ...............4-12
Spark arrester, cleaning ................................................8-18
Spark plug, checking.......................................................8-9
Specifications ................................................................10-1
Speed limiter ...................................................................4-3Starter (choke) ............................................................. 4-10
Start switch .................................................................... 4-2
Steering shaft, lubricating ............................................ 8-36
Storage .......................................................................... 9-2
Suspension, lubricating the upper and lower arm
pivots ......................................................................... 8-35
Swingarm pivots, lubricating ........................................ 8-35
T
Tail/brake light bulb, replacing ..................................... 8-42
Throttle cable free play, adjusting ................................ 8-20
Throttle lever ...........................................................4-2
,
5-4
Tire pressure, measuring ............................................... 5-5
Tires ............................................................................... 5-4
Tire wear limit................................................................. 5-6
Troubleshooting ........................................................... 8-44
Troubleshooting chart .................................................. 8-45
V
Valve clearance ........................................................... 8-21
Vehicle identification number ....................................... 11-1
W
Wheel hub bearings, checking ..................................... 8-34
Wheel, installing ........................................................... 8-43
Wheel, removing .......................................................... 8-42