2005 YAMAHA YZ250F Owners Manual

GEN
INFO
LAGERUNG
Soll das Motorrad länger als 60 Tage
gelagert werden, sind gewisse
Schutzmaßnahmen notwendig. Das
Motorrad nach der Wäsche, wie
nachfolgend beschrieben, auf die
Lagerung vorbereiten:
1. Das Benzin aus dem Kraftstoff-
tank ablassen und den Verga-
ser entleeren.
2. Die Zündkerze herausdrehen,
einen Eßlöffel SAE 10W-30
Motoröl in die Zündkerzenboh-
rung gießen und die Zündkerze
wieder eindrehen. Bei betätig-
tem Motorstoppschalter mehr-
mals den Kickstarterhebel
durchtreten, um die Zylinder-
wandungen mit Öl zu bedecken.
3. Die Antriebskette abnehmen,
gründlich reinigen und anschlie-
ßend schmieren. Die Kette mon-
tieren oder in einem am Rahmen
angebundenen Plastikbeutel
aufbewahren.
4. Sämtliche Seilzüge ölen.
5. Das Motorrad so abstützen, daß
die Räder sich frei drehen las-
sen.
6. Einen Plastikbeutel über die
Schalldämpferöffnung binden,
damit keine Feuchtigkeit ein-
dringt.
7. Ist der Lagerort feucht oder salz-
haltig, sämtliche Metallflächen
mit Sprühöl behandeln. Öl von
Gummiteilen und der Sitzbank
fernhalten.
HINWEIS:
Anfallende Reparaturen oder Inspek-
tion vor der Stillegung ausführen. REMISAGE
Si la moto doit être remisée pour 60
jours ou plus, il convient de prendre cer-
taines précautions pour éviter tout
endommagement. Après un nettoyage
complet de la moto, la préparer comme
suit pour le remisage:
1. Vidanger le réservoir de carburant,
le circuit de carburant et la cuve à
niveau constant du carburateur.
2. Déposer la bougie, verser une
cuillère à soupe d’huile moteur SAE
10W-30 dans le trou de bougie et
replacer la bougie. Enfoncer le
coupe-circuit du moteur et lancer
quelques fois le moteur à l’aide de
la pédale de kick afin de répartir
l’huile sur les parois du cylindre.
3. Déposer la chaîne de transmission,
la nettoyer soigneusement à l’aide
d’un solvant puis la graisser.
Remettre en place la chaîne ou la
conserver dans un sachet en plasti-
que (attaché au cadre pour éviter de
l’égarer).
4. Lubrifier tous les câbles de com-
mande.
5. Placer un support sous le cadre afin
de surélever les deux roues.
6. Couvrir la sortie du tuyau d’échap-
pement d’un sachet en plastique
pour empêcher la pénétration
d’humidité.
7. Si la moto doit être remisée dans un
lieu très humide ou exposé à l’air
marin, enduire toutes les surfaces
métalliques extérieures d’une fine
couche d’huile. Ne pas enduire
d’huile les parties en caoutchouc et
la housse de selle.N.B.:
Effectuer toutes les réparations nécessai-
res avant de remiser la moto.CUSTODIA
Se il mezzo rimane inutilizzato per ses-
santa o più giorni, occorre adottare
alcune misure precauzionali per evitarne
il deterioramento. Dopo averlo accurata-
mente pulito, eseguire le seguenti opera-
zioni prima di riporlo:
1. Scaricare il serbatoio, i condotti del
carburante e la vaschetta galleg-
giante del carburatore.
2. Rimuovere la candela di accen-
sione, versare un cucchiaio di olio
per motori SAE 10W-30 nel foro
della candela e reinstallarla.
Tenendo premuto l’interruttore di
arresto motore, rovesciare il motore
diverse volte per distribuire l’olio
sulle pareti del cilindro.
3. Rimuovere la catena di trasmis-
sione, pulirla accuratamente con un
solvente e lubrificarla. Reinstallare
la catena o riporla in una borsa di
plastica legata al telaio.
4. Lubrificare tutti i cavi dei comandi.
5. Bloccare il telaio per sollevare le
ruote da terra.
6. Fissare una borsa di plastica
all’estremità del tubo di scarico per
evitare l’infiltrazione di umidità.
7. Se si ripone il mezzo in un ambiente
caratterizzato da umidità o aria
salata, coprire tutte le superfici
metalliche esposte con un sottile
strato di olio leggero. Non applicare
olio alle parti in gomma o al rivesti-
mento della sella.
NOTA:
Eseguire tutte le riparazioni necessarie
prima di riporre il mezzo.
NETTOYAGE ET REMISAGE
PFLEGE UND LAGERUNG
PULIZIA E CUSTODIA DEL MEZZO
1 - 20

SPEC
2 - 1
EC200000
SPECIFICATIONS
EC211000
GENERAL SPECIFICATIONS
Model name: YZ250FT (USA, CDN, AUS, NZ)
YZ250F (EUROPE, ZA)
Model code number: 5XC5 (USA)
5XC6 (EUROPE)
5XC8 (CDN, AUS, NZ, ZA)
Dimensions:
USA, ZA,
AUS, NZEUROPE
(Except
for F)FCDN
Overall length 2,161 mm
(85.08 in)2,162 mm
(85.12 in)2,161 mm
(85.08 in)2,165 mm
(85.24 in)
Overall width 827 mm
(32.56 in)← ← ←
Overall height 1,293 mm
(50.91 in)1,295 mm
(50.98 in)← ←
Seat height 992 mm
(39.06 in)994 mm
(39.13 in)993 mm
(39.09 in)994 mm
(39.13 in)
Wheelbase 1,469 mm
(57.83 in)1,465 mm
(57.68 in)← 1,469 mm
(57.83 in)
Minimum ground clearance 380 mm
(14.96 in)382 mm
(15.04 in)← ←
Dry weight:
Without oil and fuel 93.5 kg (206 lb)
Engine:
Engine type Liquid cooled 4-stroke, DOHC
Cylinder arrangement Single cylinder, forward inclined
Displacement 249 cm
3 (8.76 Imp oz, 8.42 US oz)
Bore × stroke 77.0 × 53.6 mm (3.03 × 2.11 in)
Compression ratio 12.5 : 1
Starting system Kickstarter
Lubrication system: Dry sump
2
GENERAL SPECIFICATIONS

SPEC
2 - 2 Oil type or grade:
Engine oil (For USA and CDN)
At 5 °C (40 °F) or higher È
Yamalube 4 (20W-40) or SAE 20W-40 type
SG motor oil
(Non-Friction modified)
At 15 °C (60 °F) or lower É
Yamalube 4 (10W-30) or SAE 10W-30 type
SG motor oil
(Non-Friction modified)
and/or
Yamalube 4-R (15W-50)
(Non-Friction modified)
(Except for USA and CDN)
API “SG” or higher grade
Oil capacity:
Engine oil
Periodic oil change 1.0 L (0.88 Imp qt, 1.06 US qt)
With oil filter replacement 1.1 L (0.97 Imp qt, 1.16 US qt)
Total amount 1.2 L (1.06 Imp qt, 1.27 US qt)
Coolant capacity (including all routes): 0.9 L (0.79 Imp qt, 0.95 US qt)
Air filter: Wet type element
Fuel:
Type Premium unleaded gasoline only with a
research octane number of 95 or higher.
Tank capacity 7.0 L (1.54 Imp gal, 1.85 US gal)
Carburetor:
Type FCR-MX37
Manufacturer KEIHIN
Spark plug:
Type/manufacturer CR8E/NGK (resistance type)
Gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
Clutch type: Wet, multiple-disc
-20
-4-10
140
3010
5020
6830
8640 50
104
122 ˚CTemp.
˚F
10W-30
10W-40
20W-40
20W-50
15W-40
GENERAL SPECIFICATIONS

2

SPEC
2 - 3 Transmission:
Primary reduction system Gear
Primary reduction ratio 57/17 (3.353)
Secondary reduction system Chain drive
Secondary reduction ratio 48/13 (3.692) (Except for EUROPE)
49/13 (3.769) (For EUROPE)
Transmission type Constant mesh, 5-speed
Operation Left foot operation
Gear ratio: 1st 30/14 (2.143)
2nd 28/16 (1.750)
3rd 29/20 (1.450)
4th 27/22 (1.227)
5th 25/24 (1.042)
Chassis:
USA, ZA,
AUS, NZEUROPE
(Except
for F)FCDN
Frame type Semi dou-
ble cradle← ← ←
Caster angle 27.1°← 27.2°←
Trail 116 mm
(4.57 in)117 mm
(4.61 in)119 mm
(4.69 in)118 mm
(4.65 in)
Tire:
Type With tube
Size (front) 80/100-21 51M (For USA, CDN, ZA, AUS, NZ
and F)
80/100-21 51R (For EUROPE except F)
Size (rear) 100/90-19 57M (For USA, CDN, ZA, AUS, NZ
and F)
100/90-19 NHS (For EUROPE except F)
Tire pressure (front and rear) 100 kPa (1.0 kgf/cm
2, 15 psi)
Brake:
Front brake type Single disc brake
Operation Right hand operation
Rear brake type Single disc brake
Operation Right foot operation
Suspension:
Front suspension Telescopic fork
Rear suspension Swingarm (link type monocross suspension)
Shock absorber:
Front shock absorber Coil spring/oil damper
Rear shock absorber Coil spring/gas, oil damper
Wheel travel:
Front wheel travel 300 mm (11.8 in)
Rear wheel travel 315 mm (12.4 in)
Electrical:
Ignition system CDI magneto
GENERAL SPECIFICATIONS

SPEC
2 - 4
MAINTENANCE SPECIFICATIONS
ENGINE
Item Standard Limit
Cylinder head:
Warp limit ---- 0.05 mm
(0.002 in)
Cylinder:
Bore size 77.00 ~ 77.01 mm
(3.0315 ~ 3.0319 in)----
Out of round limit ---- 0.05 mm
(0.002 in)
Camshaft:
Drive method Chain drive (Left) ----
Camshaft cap inside diameter 22.000 ~ 22.021 mm
(0.8661 ~ 0.8670 in)----
Camshaft outside diameter 21.959 ~ 21.972 mm
(0.8645 ~ 0.8650 in)----
Shaft-to-cap clearance 0.028 ~ 0.062 mm
(0.0011 ~ 0.0024 in)0.08 mm
(0.003 in)
Cam dimensions
Intake“A”30.296 ~ 30.346 mm
(1.1923 ~ 1.1947 in)30.196 mm
(1.1888 in)
“B”22.45 ~ 22.55 mm
(0.8839 ~ 0.8878 in)22.35 mm
(0.8799 in)
Exhaust“A”30.399 ~ 30.499 mm
(1.1968 ~ 1.2007 in)30.299 mm
(1.1929 in)
“B”22.45 ~ 22.55 mm
(0.8839 ~ 0.8878 in)22.35 mm
(0.8799 in)
Camshaft runout limit ---- 0.03 mm
(0.0012 in)
A
B
MAINTENANCE SPECIFICATIONS

SPEC
2 - 5 Timing chain:
Timing chain type/No. of links 92RH2010-114M/114 ----
Timing chain adjustment method Automatic ----
Valve, valve seat, valve guide:
Valve clearance (cold) IN 0.10 ~ 0.15 mm
(0.0039 ~ 0.0059 in)----
EX 0.17 ~ 0.22 mm
(0.0067 ~ 0.0087 in)----
Valve dimensions:
“A” head diameter IN 22.9 ~ 23.1 mm
(0.9016 ~ 0.9094 in)----
EX 24.4 ~ 24.6 mm
(0.9606 ~ 0.9685 in)----
“B” face width IN 2.26 mm (0.089 in) ----
EX 2.26 mm (0.089 in) ----
“C” seat width IN 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
EX 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
“D” margin thickness IN 0.8 mm (0.0315 in) ----
EX 0.7 mm (0.0276 in) ----
Stem outside diameter IN 3.975 ~ 3.990 mm
(0.1565 ~ 0.1571 in)3.945 mm
(0.1553 in)
EX 4.460 ~ 4.475 mm
(0.1756 ~ 0.1762 in)4.430 mm
(0.1744 in)
Guide inside diameter IN 4.000 ~ 4.012 mm
(0.1575 ~ 0.1580 in)4.050 mm
(0.1594 in)
EX 4.500 ~ 4.512 mm
(0.1772 ~ 0.1776 in)4.550 mm
(0.1791 in)
Stem-to-guide clearance IN 0.010 ~ 0.037 mm
(0.0004 ~ 0.0015 in)0.08 mm
(0.003 in)
EX 0.025 ~ 0.052 mm
(0.0010 ~ 0.0020 in)0.10 mm
(0.004 in) Item Standard Limit
BC
DA
Head diameter Face width Seat width Margin thickness
MAINTENANCE SPECIFICATIONS

SPEC
2 - 6 Stem runout limit ---- 0.01 mm
(0.0004 in)
Valve seat width IN 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
EX 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
Valve spring:
Free length IN 37.81 mm (1.49 in) 36.81 mm
(1.45 in)
EX 37.54 mm (1.48 in) 36.54 mm
(1.44 in)
Set length (valve closed) IN 29.13 mm (1.15 in) ----
EX 29.30 mm (1.15 in) ----
Compressed force (installed) IN 99 ~ 114 N at 29.13 mm
(9.9 ~ 11.4 kg at 29.13 mm,
22.27 ~ 25.57 lb at 1.15 in)----
EX 126 ~ 144 N at 29.30 mm
(12.6 ~ 14.4 kg at 29.30 mm,
28.44 ~ 32.41 lb at 1.15 in)----
Tilt limit IN ---- 2.5°/1.7 mm
(2.5°/0.067 in)
EX ---- 2.5°/1.6 mm
(2.5°/0.063 in)
Direction of winding (top view) IN Clockwise ----
EX Clockwise ----
Piston:
Piston to cylinder clearance 0.040 ~ 0.065 mm
(0.0016 ~ 0.0026 in)0.1 mm
(0.004 in)
Piston size “D”76.955 ~ 76.970 mm
(3.0297 ~ 3.0303 in)----
Measuring point “H”8 mm (0.31 in) ----
Piston off-set 0.5 mm (0.020 in)/IN-side ----Item Standard Limit
H
D
MAINTENANCE SPECIFICATIONS

SPEC
2 - 7 Piston pin bore inside diameter 16.002 ~ 16.013 mm
(0.6300 ~ 0.6304 in)16.043 mm
(0.6316 in)
Piston pin outside diameter 15.991 ~ 16.000 mm
(0.6296 ~ 0.6299 in)15.971 mm
(0.6288 in)
Piston rings:
Top ring:
Type Barrel ----
Dimensions (B × T) 0.90 × 2.75 mm (0.04 × 0.11 in) ----
End gap (installed) 0.15 ~ 0.25 mm
(0.006 ~ 0.010 in)0.50 mm
(0.020 in)
Side clearance (installed) 0.030 ~ 0.065 mm
(0.0012 ~ 0.0026 in)0.12 mm
(0.005 in)
2nd ring:
Type Taper ----
Dimensions (B × T) 0.80 × 2.75 mm (0.03 × 0.11 in) ----
End gap (installed) 0.30 ~ 0.45 mm
(0.012 ~ 0.018 in)0.80 mm
(0.031 in)
Side clearance 0.020 ~ 0.055 mm
(0.0008 ~ 0.0022 in)0.12 mm
(0.005 in)
Oil ring:
Dimensions (B × T) 1.50 × 2.25 mm (0.06 × 0.09 in) ----
End gap (installed) 0.10 ~ 0.40 mm
(0.004 ~ 0.016 in)----
Crankshaft:
Crank width “A”55.95 ~ 56.00 mm
(2.203 ~ 2.205 in)----
Runout limit “C”0.03 mm (0.0012 in) 0.05 mm
(0.002 in)
Big end side clearance “D”0.15 ~ 0.45 mm
(0.0059 ~ 0.0177 in)0.50 mm
(0.02 in)
Small end free play “F”0.4 ~ 1.0 mm
(0.02 ~ 0.04 in)2.0 mm
(0.08 in)
Clutch:
Friction plate thickness 2.9 ~ 3.1 mm
(0.114 ~ 0.122 in)2.7 mm
(0.106 in)
Quantity 9 ----Item Standard Limit
T
B
B
T
B
T
MAINTENANCE SPECIFICATIONS