change wheel YAMAHA YZ250LC 2007 Notices Demploi (in French)

2-1
GENERAL SPECIFICATIONSSPEC
Model name: YZ250W1 (USA, CDN)
YZ250 (EUROPE, ZA)
YZ250W (AUS, NZ)
Model code number: 1P89 (USA, CDN)
1P8A (EUROPE)
1P8C (AUS, NZ, ZA)
Dimensions:USA, AUS, NZ, ZAEUROPE, CDN
Overall length 2,178 mm 2,184 mm
(85.7 in) (86.0 in)
Overall width 827 mm←
(32.6 in)
Overall height 1,306 mm 1,309 mm
(51.4 in) (51.5 in)
Seat height 994 mm 997 mm
(39.1 in) (39.3 in)
Wheelbase 1,481 mm←
(58.3 in)
Minimum ground clearance 382 mm 385 mm
(15.0 in) (15.2 in)
Dry weight:
Without oil and fuel 96.0 kg (211.6 lb)
Engine:
Engine type Liquid cooled 2-stroke, gasoline
Cylinder arrangement Single cylinder, forward inclined
Displacement 249 cm
3(8.76 lmp oz, 8.42 US oz)
Bore ×Stroke 66.4 ×72 mm (2.614 ×2.835 in)
Compression ratio 9.2~10.9 : 1 (For USA and CDN)
8.9~10.6 : 1 (For EUROPE, AUS, NZ and ZA)
Starting system Kick starter
Lubrication system: Premix (30 : 1)(Yamalube 2-R)
Oil type or grade (2-Cycle):
Transmission oil Yamalube 4 (10W-30) or SAE 10W-30 type SE
motor oil
Periodic oil change 0.75 L (0.66 Imp qt, 0.79 US qt)
Total amount 0.80 L (0.70 Imp qt, 0.85 US qt)
Coolant capacity (including all routes): 1.20 L (1.06 Imp qt, 1.27 US qt)
Air filter: Wet type element
Fuel:
Type Premium unleaded gasoline
only with a research octane
number of 95 or higher
Tank capacity 8.0 L (1.76 Imp gal, 2.11 US gal)
EC200000
SPECIFICATIONSEC211000
GENERAL SPECIFICATIONS
1P8-9-32-2 4/29/06 11:45 AM Page 2

3-30
REAR SHOCK ABSORBER SPRING PRELOAD
ADJUSTMENTINSP
ADJ
NOTE:
9Be sure to remove all dirt and mud from around
the locknut and adjuster before
adjustment.
9The length of the spring (installed) changes 1.5
mm (0.06 in) per turn of the adjuster.
9The I.D. mark bis marked at the end of the
spring.
9The standard length and extent of adjustment
vary according to the quantity of I.D. marks.
cC
Never attempt to turn the adjuster beyond
the maximum or minimum setting.
EC36M014
REAR SHOCK ABSORBER SPRING
PRELOAD ADJUSTMENT
1. Elevate the rear wheel by placing the suit-
able stand under the engine.
2. Remove:
9Rear frame
3. Loosen:
9Locknut 1
4. Adjust:
9Spring preload
By turning the adjuster 2.
Stiffer Increase the spring preload.
(Turn the adjuster 2 2
in.)
Softer Decrease the spring pre-
load. (Turn the adjuster 2 2
out.)
Extent of adjustment
245.5~263.5 mm
(9.67~10.37 in)
251.5~269.5 mm
(9.90~10.61 in)
243.0~261.0 mm
(9.57~10.28 in)
Spring length (installed) a a
:
Standard length
One I.D. mark
253 mm (9.96 in)
*252 mm (9.92 in)
Two I.D. marks
259 mm (10.20 in)
*258 mm (10.16 in)
Three I.D. marks
250.5 mm (9.86 in)
*249.5 mm (9.82 in)
*For EUROPE
1P8-9-32-3b 5/1/06 9:41 AM Page 28

7-16
SETTINGTUN
EC72P010
Front fork setting parts
9Front fork spring 1
NOTE:
The I.D. mark (slits) ais proved on the end of
the spring.
EC72B000
Rear suspension setting
The rear suspension setting should be made
depending on the rider’s feeling of an actual run
and the circuit conditions.
The rear suspension setting includes the follow-
ing two factors:
1. Setting of spring preload
9Change the set length of the spring.
9Change the spring.
2. Setting of damping force
9Change the rebound damping.
9Change the compression damping.
SPRING SPRINGI.D.
TYPE
RATE PART NUMBERMARK
(slits)
0.398 1C3-23141-A0 I
SOFT 0.408 1C3-23141-B0 II
0.418 1C3-23141-C0 III
STD 0.428 1P8-23141-M0 –
0.438 1C3-23141-E0 IIIII
0.449 1C3-23141-F0 I-I
STIFF 0.459 1C3-23141-G0 I-II
0.469 1C3-23141-H0 I-III
0.479 1C3-23141-J0 I-IIII
EC72C001
Choosing set length
1. Place a stand or block under the engine to
put the rear wheel above the floor, and mea-
sure the length abetween the rear wheel
axle center and the rear fender holding bolt.
1P8-9-32-7 4/28/06 3:48 PM Page 36

7-17
SETTINGTUN
2. Remove the stand or block from the engine
and with a rider astride the seat, measure
the sunken length bbetween the rear wheel
axle center and the rear fender holding bolt.
3. Loosen the locknut 1and make adjustment
by turning the spring adjuster 2to achieve
the standard figure from the subtraction of
the length bfrom the length a.
Standard figure:
90~100 mm (3.5~3.9 in)
NOTE:
9If the machine is new and after it is broken in,
the same set length of the spring may change
because of the initial fatigue, etc. of the spring.
Therefore, be sure to make re-evaluation.
9If the standard figure cannot be achieved by
adjusting the spring adjuster and changing the
spring set length, replace the spring with an
optional one and make re-adjustment.
1P8-9-32-7 4/28/06 3:48 PM Page 38