air filter YAMAHA YZ250F 2005 Betriebsanleitungen (in German)

GEN
INFO
1 - 1
DESCRIPTION
EC100000
GENERAL INFORMATION
EC110000
DESCRIPTION
1Clutch lever
2Hot starter lever
3Front brake lever
4Throttle grip
5Radiator cap
6Fuel tank cap
7Engine stop switch
8Kickstarter crank
9Fuel tank
0Radiator
ACoolant drain bolt
BRear brake pedal
CValve joint
DFuel cock
ECold starter knob
FDrive chain
GAir filter
HShift pedal
IDipstick
JFront forkNOTE:
The machine you have purchased may differ
slightly from those shown in the following.
Designs and specifications are subject to
change without notice.

GEN
INFO
ALLGEMEINE
ANGABEN
FAHRZEUGBESCHREI-
BUNG
1Kupplungshebel
2Warmstarthebel
3Handbremshebel
4Gasdrehgriff
5Kühlerverschlußdeckel
6Tankverschluß
7Motorstoppschalter
8Kickstarterhebel
9Kraftstofftank
0Kühler
AKühlflüssigkeits-Ablaßschraube
BFußbremshebel
CVentilverbindung
DKraftstoffhahn
EChokehebel
FAntriebskette
GLuftfilter
HFußschalthebel
IMeßstab
JTeleskopgabel
HINWEIS:
Die Abbildungen in vorliegender
Anleitung können leicht vom
eigentlichen Modell abweichen
und dienen daher lediglich zur
Bezugnahme.
Änderungen an Design und techni-
schen Daten jederzeit vorbehalten.
RENSEIGNEMENTS
GENERAUX
DESCRIPTION
1Levier d’embrayage
2Levier de démarrage à chaud
3Levier de frein avant
4Poignée des gaz
5Bouchon de radiateur
6Bouchon du réservoir de carburant
7Coupe-circuit du moteur
8Pédale de kick
9Réservoir de carburant
0Radiateur
ABoulon de vidange du liquide de refroi-
dissement
BPédale de frein arrière
CJoint de robinet
DRobinet de carburant
ECommande de départ à froid
FChaîne de transmission
GFiltre à air
HSélecteur
IJauge
JFourche
N.B.:
Votre moto diffère peut-être partielle-
ment de celle montrée sur ces photos.
La conception et les caractéristiques
peuvent être modifiées sans préavis.
INFORMAZIONI
GENERALI
DESCRIZIONE
1Leva della frizione
2Leva starter per partenze a caldo
3Leva del freno anteriore
4Manopola acceleratore
5Coperchio del radiatore
6Tappo serbatoio carburante
7Interruttore di arresto motore
8Leva avviamento a pedale
9Serbatoio del carburante
0Radiatore
ABullone di scarico refrigerante
BPedale del freno posteriore
CGiunto della valvola
DRubinetto del carburante
EManopola starter per partenze a freddo
FCatena di trasmissione
GFiltro aria
HPedale del cambio
IAstina di misurazione
JForcella anteriore
NOTA:
È possibile che alcune delle caratteri-
stiche del mezzo acquistato non corri-
spondano a quanto mostrato in
seguito.
Il design e i dati tecnici sono soggetti a
variazioni senza preavviso.
DESCRIPTION
FAHRZEUGBESCHREIBUNG
DESCRIZIONE
1 - 1
1

1 - 11
GEN
INFO
CONTROL FUNCTIONS
EC156000
FRONT BRAKE LEVER
The front brake lever 1 is located on the right
handlebar. Pull it toward the handlebar to acti-
vate the front brake.
EC157000
REAR BRAKE PEDAL
The rear brake pedal 1 is located on the right
side of the machine. Press down on the brake
pedal to activate the rear brake.
EC158001
FUEL COCK
The fuel cock supplies fuel from the tank to
carburetor while filtering the fuel. The fuel cock
has the two positions:
OFF: With the lever in this position, fuel will not
flow. Always return the lever to this posi-
tion when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
COLD STARTER KNOB
When cold, the engine requires a richer air-fuel
mixture for starting. A separate starter circuit,
which is controlled by the cold starter knob 1,
supplies this mixture. Pull the cold starter knob
out to open the circuit for starting. When the
engine has warmed up, push it in to close the
circuit.
HOT STARTER LEVER
The hot starter lever 1 is used when starting a
warm engine.
Use the hot starter lever when starting the
engine again immediately after it was stopped
(the engine is still warm). Pulling the hot starter
lever injects secondary air to thin the air-fuel
mixture temporarily, allowing the engine to be
started more easily.

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 - 10 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Spark plug M10S × 1.0 1 13 1.3 9.4
Camshaft cap M6 × 1.0 10 10 1.0 7.2
Cylinder head blind plug screw M12 × 1.0 1 28 2.8 20
Cylinder head (stud bolt) M6 × 1.0 2 7 0.7 5.1
(stud bolt) M8 × 1.25 1 15 1.5 11
(bolt) M9 × 1.25 4 38 3.8 27
(nut) M6 × 1.0 2 10 1.0 7.2
Cylinder head cover M6 × 1.0 2 10 1.0 7.2
Cylinder M6 × 1.0 1 10 1.0 7.2
Balancer weight M6 × 1.0 2 10 1.0 7.2
Balancer shaft driven gear M14 × 1.0 1 50 5.0 36
Timing chain guide (intake side) M6 × 1.0 2 10 1.0 7.2
Timing chain tensioner M6 × 1.0 2 10 1.0 7.2
Timing chain tensioner cap bolt M6 × 1.0 1 7 0.7 5.1
Impeller M8 × 1.25 1 14 1.4 10
Radiator hose clamp M6 × 1.0 8 2 0.2 1.4
Coolant drain bolt M6 × 1.0 1 10 1.0 7.2
Water pump housing M6 × 1.0 4 10 1.0 7.2
Radiator M6 × 1.0 6 10 1.0 7.2
Radiator guard M6 × 1.0 2 10 1.0 7.2
Radiator pipe M6 × 1.0 1 10 1.0 7.2
Oil pump cover M4 × 0.7 1 2 0.2 1.4
Oil pump M6 × 1.0 3 10 1.0 7.2
Oil filter element drain bolt M6 × 1.0 1 10 1.0 7.2
Oil filter element cover M6 × 1.0 2 10 1.0 7.2
Oil strainer M6 × 1.0 2 10 1.0 7.2
Oil delivery pipe 1 (M10) M10 × 1.25 1 20 2.0 14
(M8) M8 × 1.25 2 18 1.8 13
Oil hose M6 × 1.0 2 8 0.8 5.8
Oil hose clamp—220.21.4
Oil strainer and frame M14 × 1.5 1 70 7.0 50
Carburetor joint clamp M4 × 0.7 2 3 0.3 2.2
Air filter joint clamp M6 × 1.0 1 3 0.3 2.2
Throttle cable (pull) M6 × 1.0 1 4 0.4 2.9
Throttle cable (return) M12 × 1.0 1 11 1.1 8.0
Throttle cable cover M5 × 0.8 2 4 0.4 2.9
Hot starter plunger M12 × 1.0 1 2 0.2 1.4
Air filter case M6 × 1.0 2 8 0.8 5.8
Air filter joint and air filter case M5 × 0.8 1 4 0.4 2.9
Air filter element M6 × 1.0 1 2 0.2 1.4
Exhaust pipe (nut) M8 × 1.25 1 13 1.3 9.4
(bolt) M8 × 1.25 1 24 2.4 17
Exhaust pipe protector M6 × 1.0 3 10 1.0 7.2
MAINTENANCE SPECIFICATIONS

3 - 2
INSP
ADJ
MAINTENANCE INTERVALS
SHIFT FORK, SHIFT CAM, GUIDE BAR
InspectInspect wear
ROTOR NUT
Retighten
EXHAUST PIPE, SILENCER, PRO-
TECTOR
Inspect and retighten
Clean
Replace * Whichever comes first
CRANK
Inspect and clean
CARBURETOR
Inspect, adjust and clean
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAIN
Use chain lube
Chain slack: 48 ~ 58 mm
(1.9 ~ 2.3 in) Lubricate, slack, alignment
Replace
COOLING SYSTEM
Check coolant level and leakage
Check radiator cap operation
Replace coolant Every two years
Inspect hoses
OUTSIDE NUTS AND BOLTS Refer to “STARTING
AND BREAK-IN” section
in the CHAPTER 1. Retighten
AIR FILTER
Clean and lubricate
Use foam air-filter oil or
equivalent oil
Replace
OIL FILTER
Replace
OIL STRAINER (frame)
Clean
FRAME
Clean and inspect
FUEL TANK, COCK
Clean and inspect
BRAKES
Adjust lever position and pedal height
Lubricate pivot point
Check brake disc surface
Check fluid level and leakage
Retighten brake disc bolts, caliper
bolts, master cylinder bolts and union
bolts
Replace pads
Replace brake fluid Every one year
FRONT FORKS
Inspect and adjust
Replace oil Suspension oil “S1”
Replace oil sealItemAfter
break-inEvery
race
Every
third
(or
500 km)Every
fifth
(or
1,000 km)As re-
quiredRemarks


3

3 - 11
INSP
ADJHOT STARTER LEVER ADJUSTMENT/
AIR FILTER CLEANING
HOT STARTER LEVER ADJUSTMENT
1. Check:
Hot starter lever free play a
Out of specification → Adjust.
2. Adjust:
Hot starter lever free play
NOTE:
After adjustment, check proper operation of
hot starter.
Hot starter lever free play
a:
3 ~ 6 mm (0.12 ~ 0.24 in)
Hot starter lever free play adjustment
steps:
Loosen the locknut 1.
Turn the adjuster 2 until free play a is
within the specified limits.
Tighten the locknut.
AIR FILTER CLEANING
NOTE:
Proper air filter maintenance is the biggest key
to preventing premature engine wear and
damage.
CAUTION:
Never run the engine without the air filter
element in place; this would allow dirt and
dust to enter the engine and cause rapid
wear and possible engine damage.
1. Remove:
Seat
Fitting bolt 1
Washer 2
Air filter element 3
Air filter guide 4

INSP
ADJ
WARMSTARTHEBEL
EINSTELLEN
1. Kontrollieren:
Warmstarthebel-Spiel a
Nicht nach Vorgabe → Einstel-
len.
2. Einstellen:
Warmstarthebel-Spiel
HINWEIS:
Nach der Einstellung die Warmstart-
funktion kontrollieren.
Warmstarthebel-Spiel a:
3–6 mm (0,12–0,24 in)
Warmstarthebel-Spiel einstel-
len:
Die Sicherungsmutter 1 lok-
kern.
Die Einstellmutter 2 verdrehen,
bis das vorgeschriebene Spiel
a erreicht ist.
Die Sicherungsmutter festzie-
hen.
LUFTFILTER REINIGEN
HINWEIS:
Sachgemäße Luftfilter-Wartung ist
ausschlaggebend im Schutz vor früh-
zeitigen Motorschäden und -ver-
schleiß.
ACHTUNG:
Der Motor darf unter keinen
Umständen mit ausgebautem Luft-
filter betrieben werden, da ungefil-
terte Ansaugluft zu erhöhtem
Verschleiß und Motorschäden füh-
ren kann.
1. Demontieren:
Sitzbank
Schraube 1
Beilagscheibe 2
Luftfiltereinsatz 3
Filterrahmen 4 REGLAGE DU LEVIER DE
DEMARRAGE A CHAUD
1. Contrôler:
Jeu du levier de démarrage à
chaud a
Hors spécifications → Régler.
2. Régler:
Jeu du levier de démarrage à
chaud
N.B.:
Après le réglage, contrôler le fonctionne-
ment du levier de démarrage à chaud.
Jeu du levier de démarrage
à chaud a:
3 à 6 mm (0,12 à 0,24 in)
Etapes du réglage du jeu du levier
de démarrage à chaud:
Desserrer le contre-écrou 1.
Faire tourner le dispositif de
réglage 2 jusqu’à ce que le jeu a
se situe dans les limites spécifiées.
Serrer le contre-écrou.
NETTOYAGE DU FILTRE A AIR
N.B.:
Un bon entretien du filtre à air est la
meilleure façon d’éviter l’usure et
l’endommagement prématurés du
moteur.
ATTENTION:
Ne jamais faire tourner un moteur
lorsque l’élément du boîtier du filtre à
air n’est pas en place. Des crasses et
des poussières pourraient pénétrer
dans le moteur et provoquer son usure
prématurée et d’éventuels dommages.
1. Déposer:
Selle
Boulon de fixation 1
Rondelle 2
Elément du boîtier de filtre à air
3
Guide de filtre à air 4 REGOLAZIONE LEVA STARTER
PER PARTENZE A CALDO
1. Controllare:
Gioco leva starter per partenze a
caldo a
Non conforme alle specifiche →
Regolare.
2. Regolare:
Gioco della leva starter per par-
tenze a caldo
NOTA:
Dopo la regolazione, controllare il cor-
retto funzionamento dello starter per par-
tenze a caldo.
Gioco leva starter per par-
tenze a caldo a:
3 ~ 6 mm (0,12 ~ 0,24 in)
Operazioni per la regolazione del
gioco della leva starter per par-
tenze a caldo:
Allentare il controdado 1.
Ruotare il dispositivo di regola-
zione 2 finché il gioco a rientri
nei limiti indicati.
Serrare il controdado.
PULIZIA DEL FILTRO ARIA
NOTA:
Una corretta manutenzione del filtro aria
costituisce la migliore prevenzione con-
tro la precoce usura e il danneggiamento
del motore.
ATTENZIONE:
Non avviare mai il motore senza la
cartuccia del filtro aria, altrimenti la
sporcizia e la polvere che entrano nel
motore saranno causa di una rapida
usura e di possibili danneggiamenti.
1. Togliere:
Sella
Bullone di montaggio 1
Rondella 2
Cartuccia del filtro dell’aria 3
Guida del filtro dell’aria 4 REGLAGE DU LEVIER DE DEMARRAGE A CHAUD/NETTOYAGE DU FILTRE A AIR
WARMSTARTHEBEL EINSTELLEN/LUFTFILTER REINIGEN
REGOLAZIONE LEVA STARTER PER PARTENZE A CALDO/PULIZIA DEL FILTRO ARIA
3 - 11

3 - 12
INSP
ADJ
AIR FILTER CLEANING
2. Clean:
Air filter element
Clean them with solvent.
NOTE:
After cleaning, remove the remaining solvent
by squeezing the element.
CAUTION:
Do not twist the element when squeezing
the element.
Leaving too much of solvent in the ele-
ment may result in poor starting.
3. Inspect:
Air filter element
Damage → Replace.
4. Apply:
Foam-air-filter oil or equivalent oil to the
element.
NOTE:
Squeeze out the excess oil. Element should be
wet but not dripping.
5. Install:
Air filter guide 1
NOTE:
Align the projection a on air filter guide with
the hole b in air filter element.
6. Apply:
Lithium soap base grease
On the matching surface a on air filter
element.

INSP
ADJ
2. Reinigen:
Luftfiltereinsatz
(in Lösungsmittel)
HINWEIS:
Anschließend überschüssiges
Lösungsmittel vorsichtig aus dem Fil-
tereinsatz ausdrücken.
ACHTUNG:
Darauf achten, daß der Filterein-
satz beim Ausdrükken nicht ver-
dreht wird.
Ein Überschuß an Lösungsmit-
tel-Rückständen kann Startpro-
bleme verursachen.
3. Kontrollieren:
Luftfiltereinsatz
Beschädigt → Erneuern.
4. Auftragen:
Hochwertiges Schaumfilteröl
o. Ä. (auf den Filtereinsatz).
HINWEIS:
Überschüssiges Öl ausdrücken. Der
Filtereinsatz sollte lediglich feucht,
nicht triefend naß sein.
5. Montieren:
Filterrahmen 1
HINWEIS:
Die Haltenase a am Filterrahmen in
die entsprechende Bohrung b im
Luftfiltereinsatz einsetzen.
6. Auftragen:
Lithiumseifenfett
(auf die Paßfläche a des Fil-
tereinsatzes). 2. Nettoyer:
Elément du boîtier de filtre à air
Nettoyer à l’aide d’un solvant.
N.B.:
Après nettoyage, éliminer l’excès de sol-
vant en pressant l’élément.
ATTENTION:
Ne pas tordre l’élément.
Un excès de solvant risque de provo-
quer des problèmes de démarrage.
3. Contrôler:
Elément du boîtier de filtre à air
Endommagement → Remplacer.
4. Appliquer:
Huile pour filtre à air mousse ou
huile équivalente sur l’élément.
N.B.:
Comprimer pour éliminer l’excès
d’huile. L’élément doit être humide mais
sans excès.
5. Monter:
Guide de filtre à air 1
N.B.:
Aligner la saillie a du guide de filtre à
air et le trou b de l’élément du boîtier
de filtre à air.
6. Appliquer:
graisse à savon de lithium
Sur la surface de contact a de
l’élément du boîtier de filtre à air.2. Pulire:
Cartuccia del filtro dell’aria
Pulire con un solvente.
NOTA:
Dopo la pulizia, togliere il solvente in
eccesso premendo la cartuccia.
ATTENZIONE:
Non strizzare la cartuccia.
Troppo solvente nella cartuccia può
rallentare l’avviamento.
3. Controllare:
Cartuccia del filtro dell’aria
Danno → Sostituire.
4. Applicare:
Olio schiuma filtro aria o un pro-
dotto equivalente.
NOTA:
Premere la cartuccia per togliere l’olio in
eccesso. La cartuccia deve essere umida,
ma non troppo bagnata.
5. Installare:
Guida del filtro dell’aria 1
NOTA:
Allineare la sporgenza a della guida del
filtro dell’aria con il foro b della cartuc-
cia del filtro dell’aria.
6. Applicare:
Grasso a base di sapone di litio
Sulla superficie di contatto a
della cartuccia del filtro dell’aria.
NETTOYAGE DU FILTRE A AIR
LUFTFILTER REINIGEN
PULIZIA DEL FILTRO ARIA
3 - 12