2003 YAMAHA TTR90 oil

3 - 5
INSP
ADJ

ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for several
minutes and wait for five minutes.
2. Place the machine on a level place and
hold it up on upright position by placing
the suitable stand under the engine.
3. Remove:

Dipstick
1
4. Check:

Oil level
Oil level should be between maximum
a
and minimum
b
marks.
Oil level is low
→
Add oil to proper
level.
NOTE:

When inspecting the oil level, do not screw the
dipstick into the oil tank. Insert the gauge
lightly.
(For USA and CDN)
CAUTION:


Do not add any chemical additives.
Engine oil also lubricates the clutch and
additives could cause clutch slippage.

Do not allow foreign material to enter the
crankcase.
Recommended oil:
At –10 ˚C (10 ˚F) or higher
Å
:
Yamalube 4 (10W-30) or SAE
10W-30 type SE/SF motor oil
At 5 ˚C (40 ˚F) or higher
ı
:
Yamalube 4 (20W-40) or SAE
20W-40 type SE/SF motor oil
010 30 50 70
90110
130
-20
-10010
20 30 40
50
Å
ı
˚C ˚F

ENGINE OIL LEVEL INSPECTION

3 - 6
INSP
ADJ

ENGINE OIL REPLACEMENT
(Except for USA and CDN)
CAUTION:


Do not add any chemical additives or use
oils with a grade of CD a or higher.
Do not use oils labeled “ENERGY CON-
SERVING II” b or higher. Engine oil also
lubricates the clutch and additives could
cause clutch slippage.
Do not allow foreign materials to enter the
crankcase.
5. Install:
Dipstick
6. Start the engine and let it warm up for
several minutes.
7. Turn off the engine and inspect the oil
level once again.
NOTE:
Wait a few minutes until the oil settles before
inspecting the oil level.
ENGINE OIL REPLACEMENT
1. Start the engine and warm it up for sev-
eral minutes and wait for five minutes.
2. Place the machine on a level place and
hold it on upright position by placing the
suitable stand under the engine.
3. Place a suitable container under the
engine.
4. Remove:
Dipstick 1
Drain bolt (with gasket) 2
Drain the crankcase of its oil.
Recommended oil:
Refer to the following chart for
selection of oils which are suited
to the atmospheric temperatures.
Recommended engine oil classi-
fication:
API STANDARD:
API “SE/SF” or higher grade
(Designed primarily for motor-
cycles)
a
b

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INSP
ADJ
PILOT AIR SCREW ADJUSTMENT
5. Install:
Gasket
Drain bolt
New
T R..20 Nm (2.0 m · kg, 14 ft · lb)
6. Fill:
Crankcase
Oil quantity:
Periodic oil change:
0.8 L (0.70 Imp qt, 0.85 US qt)
7. Install:
Dipstick
8. Inspect:
Engine (for oil leaks)
Oil level
Refer to “ENGINE OIL LEVEL INSPEC-
TION”.
PILOT AIR SCREW ADJUSTMENT
1. Adjust:
Pilot air screw 1
Adjusting steps:
Screw in the pilot air screw until it is lightly
seated.
Back out by the specified number of turns.
Pilot air screw:
1-3/4 turns out

INSP
ADJNETTOYAGE DU PARE-ETINCELLES (pour les USA)
FUNKENLÖSCHER REINIGEN (Nur USA)
6. Montieren:
Kipphebeldeckel (Einlaßseite) 1
O-Ringe 2
HINWEIS:
Lithiumfett auf den O-Ring auftragen.
7. Montieren:
Kipphebeldeckel (Auslaßseite)
O-Ringe
Zündkerze
Schwungrad-Abdeckschraube
Kurbelwellenendabdeckung
HINWEIS:
Lithiumfett auf den O-Ring auftragen.
8. Montieren:
Luftfiltergehäuse
Lufthutze (rechts)
FUNKENLÖSCHER REINIGEN (Nur USA)
WARNUNG
Sicherstellen, daß Krümmer und Schall-
dämpfer abgekühlt sind, bevor der Fun-
kenlöscher gereinigt wird.
Motor beim Reinigen der Auspuffanlage
nicht starten.
1. Demontieren:
Schraube (Auspuffendrohr) 1
2. Demontieren:
Auspuffendrohr 2
Das Auspuffendrohr aus dem Schall-
dämpfer ziehen.
3. Reinigen:
Funkenlöscher
Kohlenstoffablagerungen mit einer Draht-
bürste vom Funkenfängerteil an der Innen-
seite des Schalldämpfers 3 entfernen.
Das Auspuffendrohr leicht anklopfen, und
die Kohlenstoffablagerungen vom Außen-
teil a des Auspuffendrohrs entfernen.
4. Montieren:
Auspuffendrohr
Das Auspuffendrohr in den Schall-
dämpfer setzen, und das Schrauben-
loch ausrichten.
Schraube (Auspuffendrohr)
T R..18 Nm (1,8 m · kg)
New
T R..18 Nm (1,8 m · kg)
New
T R..13 Nm (1,3 m · kg)
T R..7 Nm (0,7 m · kg)
T R..7 Nm (0,7 m · kg)
T R..7 Nm (0,7 m · kg)
6. Installer:
Cache de poussoir (côté admission) 1
Joint torque 2
N.B.:
Enduire le joint torique de graisse à base de savon
au lithium.
7. Installer:
Cache de poussoir (côté échappement)
Joint torque
Bougie
Bouchon de distribution
Cache d’extrémit de vilebrequin
N.B.:
Enduire le joint torique de graisse à base de savon
au lithium.
8. Installer:
Boîtier de filtre à air
Carénage de prise d’air (droit)
NETTOYAGE DU PARE-ETINCELLES
(pour les USA)
AVERTISSEMENT
S’assurer que le tuyau et pot d’échappement
sont froids avant d’effectuer le nettoyage du
pare-étincelles.
Ne pas mettre le moteur en marche pendant le
nettoyage du système d’échappement.
1. Déposer:
Boulon (chicane) 1
2. Déposer:
Chicane 2
Sortir la chicane du pot d’échappement.
3. Nettoyer:
Pare-étincelles
Utiliser une brosse à poils métalliques pour
nettoyer les dépôts de calamine de la partie
pare-étincelles de la surface intérieure du
pot d’échappement 3.
Tapoter légèrement la chicane et nettoyer
les dépôts de calamine de la surface exté-
rieure a de la chicane.
4. Installer:
Chicane
Insérer la chicane dans le pot d’échappement
et aligner l’orifice du boulon.
Boulon (chicane)
T R..18 Nm (1,8 m · kg, 13 ft · lb)
New
T R..18 Nm (1,8 m · kg, 13 ft · lb)
New
T R..13 Nm (1,3 m · kg, 9,4 ft · lb)
T R..7 Nm (0,7 m · kg, 5,1 ft · lb)
T R..7 Nm (0,7 m · kg, 5,1 ft · lb)
T R..7 Nm (0,7 m · kg, 5,1 ft · lb)
3 - 10

3 - 13
INSP
ADJFRONT FORK INSPECTION/REAR SHOCK ABSORBER INSPECTION/
REAR SHOCK ABSORBER SPRING PRELOAD ADJUSTMENT
Tighten the wheel axle nut while pushing
down the drive chain.
T R..
Axle nut:
60 Nm (6.0 m • kg, 43 ft • lb)
Tighten the locknuts.
T R..
Locknut:
7 Nm (0.7 m • kg, 5.1 ft • lb)
EC36C000
FRONT FORK INSPECTION
1. Inspect:
Front fork smooth action
Operate the front brake and stroke the
front fork.
Unsmooth action/oil leakage → Repair
or replace.
EC36K000
REAR SHOCK ABSORBER INSPECTION
1. Inspect:
Swingarm smooth action
Abnormal noise/unsmooth action →
Grease the pivoting points or repair the
pivoting points.
Damage/oil leakage → Replace.
REAR SHOCK ABSORBER SPRING
PRELOAD ADJUSTMENT
1. Elevate the rear wheel by placing the
suitable stand under the engine.
2. Remove:
Rear shock absorber
Refer to “SWINGARM” section in the
CHAPTER 5.
3. Remove:
Spring guide 1
NOTE:
While compressing the spring, remove the
spring guide.

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INSP
ADJ
LUBRICATION
LUBRICATION
To ensure smooth operation of all compo-
nents, lubricate your machine during setup,
after break-in, and after every race.
1All control cable
2Brake lever pivot
3Shift pedal pivot
4Footrest pivot
5Throttle-to-handlebar contact
6Drive chain
7Tube guide cable winding portion
8Throttle cable end
9Brake cable endÅUse Yamaha cable lube or equivalent on these
areas.
ıUse SAE 10W-30 motor oil or suitable chain
lubricants.
ÇLubricate the following areas with high quality,
lightweight lithium-soap base grease.
AAA
AAB
CC
78

3 - 20
INSP
ADJ
BATTERY INSPECTION AND CHARGING
WARNING
Batteries generate explosive hydrogen gas
and contain electrolyte which is made of
poisonous and highly caustic sulfuric acid.
Therefore, always follow these preventive
measures:
Wear protective eye gear when handling
or working near batteries.
Charge batteries in a well-ventilated area.
Keep batteries away from fire, sparks or
open flames (e.g., welding equipment,
lighted cigarettes).
DO NOT SMOKE when charging or han-
dling batteries.
KEEP BATTERIES AND ELECTROLYTE
OUT OF REACH OF CHILDREN.
Avoid bodily contact with electrolyte as it
can cause severe burns or permanent eye
injury.
FIRST AID IN CASE OF BODILY CONTACT:
EXTERNAL
Skin — Wash with water.
Eyes — Flush with water for 15 minutes
and get immediate medical attention.
INTERNAL
Drink large quantities of water or milk fol-
lowed with milk of magnesia, beaten egg
or vegetable oil. Get immediate medical
attention.
CAUTION:
Charging time, charging amperage and
charging voltage for an MF battery are dif-
ferent from those of conventional batteries.
The MF battery should be charged as
explained in the charging method illustra-
tions. If the battery is overcharged, the
electrolyte level will drop considerably.
Therefore, take special care when charging
the battery.
BATTERY INSPECTION AND CHARGING

INSP
ADJ
6. Montieren:
Batterie
7. Kontrollieren:
Batteriepole
Verschmutzt → Mit einer Messing-
Drahtbürste säubern.
Lose → Fest verbinden.
8. Schmieren:
Batteriepole
9. Anschließen:
Batterie-Leitungsstecker
(an die Batteriepole)
10. Montieren:
Hinteres Schutzblech
Sitzbank
Empfohlenes Schmiermittel
Lithiumfett
SICHERUNGEN KONTROLLIEREN
ACHTUNG:
Vor Überprüfung oder Austausch einer
Sicherung immer das Zündschloß auf
“OFF” stellen, um einen Kurzschluß zu ver-
meiden.
1. Demontieren:
Sitzbank
Hinteres Schutzblech
2. Kontrollieren:
Durchgang
2Sicherung umkehren
Abeitsschritte
Die Sicherung 1 entfernen
Das Taschen-Multimeter an die Sicherung
anschließen und diese auf Durchgang
prüfen.
HINWEIS:
Den Wahlschalter des Taschen-Multime-
ters auf “Ω × 1” stellen.
Taschen-Multimeter
YU-03112-C/90890-03112
Falls das Multimeter “∞” anzeigt, die
Sicherung erneuern.
INSPECTION DES FUSIBLES
SICHERUNGEN KONTROLLIEREN
6. Monter:
Batterie
7. Contrôler:
Bornes de batterie
Crasse → Nettoyer avec une brosse à poils
métalliques.
Connexions lâches → Serrer correctement.
8. Lubrifier:
Bornes de batterie
9. Connecter:
Raccord de fil de batterie
(aux bornes de la batterie)
10. Monter:
Aile arrière
Selle
Lubrifiant recommandé
Graisse à base de savon de lithium
INSPECTION DES FUSIBLES
ATTENTION:
Pour éviter un court -circuit, toujours placer le
contacteur à clé sur “OFF” avant de contrôler
ou de remplacer un fusible.
1. Déposer:
Selle
Aile arrière
2. Contrôler:
Continuité
2Fusible inversé
Etapes de la vérification:
Depose du fusible 1
Connecter le multimètre au fusible et contrôler
la continuité du circuit.
N.B.:
Régler le sélecteur du multimètre sur “Ω × 1”.
Multimètre
YU-03112-C/90890-03112
Si le multimètre indique “∞”, remplacer le
fusible.
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