2000 YAMAHA TTR90 air filter

GEN
INFO

DESCRIPTION
FAHRZEUGBESCHREIBUNG
ALLGEMEINE ANGABEN
FAHRZEUGBESCHREIBUNG
1
Motorstoppschalter
2
Handbremshebel
3
Gasdrehgriff
4
Motoröl-Einfüllschraubverschluß/Tauchstab
5
Kickstarter
6
Kraftstofftank
7
Luftfilter
8
Fußbremshebel
9
Kraftstoffhahn
0
Chokehebel
A
Antriebskette
B
Schalthebel
C
Teleskopgabel
HINWEIS:

l
Leichte Modell-Abweichungen möglich.
l
Änderungen an Design und technischen Da-
ten jederzeit vorbehalten.
RENSEIGNEMENTS
GENERAUX
DESCRIPTION
1
Coupe-circuit du moteur
2
Levier de frein avant
3
Poignée d’accélérateur
4
Bouchon d’orifice de remplissage et jauge d’huile
5
Kick
6
Réservoir de carburant
7
Filtre à air
8
Pédale de frein arrière
9
Robinet à essence
0
Levier de starter
A
Chaîne de transmission
B
Pédale de sélection
C
Fourche avant
N.B.:

l
Votre machine diffère peut-être partiellement de
celles montrées sur ces photos.
l
La conception et les caractéristiques peuvent
êtres changées sans préavis.
1 - 1
1

1 - 10
GEN
INFO
CONTROL FUNCTIONS
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 three positions:
OFF: With the lever in this position, fuel will
not flow. Always return the lever to this
position 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.
RES: This indicates reserve. If you run out of
fuel while riding, move the lever to this
position. FILL THE TANK AT THE
FIRST OPPORTUNITY. BE SURE TO
SET THE LEVER TO “ON” AFTER
REFUELING.
EC159000
STARTER LEVER (CHOKE)
When cold, the engine requires a richer air/fuel
mixture for starting. A separate starter circuit,
which is controlled by the starter lever 1, sup-
plies this mixture.
Pull the lever out to open the circuit (for start-
ing) and push the lever in to close the circuit.

GEN
INFOFONCTIONS DES COMMANDES
ARMATUREN UND DEREN FUNKTION
FUSSBREMSHEBEL
Der Fußbremshebel 1 zur Betätigung der Hin-
terradbremse befindet sich auf der rechten
Fahrzeugseite.
KRAFTSTOFFHAHN
Der Kraftstoffhahn leitet den Kraftstoff vom
Tank zum Vergaser und filtert ihn gleichzeitig.
Die einzelnen Kraftstoffhahnstellungen (vgl.
Abb.) sind nachfolgend beschrieben.
OFF: Der Kraftstoffhahn ist geschlossen und
die Kraftstoffzufuhr unterbrochen. Den
Kraftstoffhahn nach Abstellen des Mo-
tors auf “OFF” stellen.
ON: Diese Stellung ist für den Normalbetrieb:
der laufende Motor wird mit Kraftstoff
versorgt. Den Kraftstoffhahn vor Fahrt-
antritt auf “ON” stellen.
RES: Dies ist die Reservestellung. Falls beim
Fahren der Kraftstoff ausgeht, muß der
Hebel in diese Position gestellt werden.
In diesem Fall so bald wie möglich auf-
tanken. Der Hebel muß nach dem Auf-
tanken wieder in die Position “ON” ge-
stellt werden.
CHOKEHEBEL
Ein kalter Motor benötigt zum Starten ein fette-
res Luft-Kraftstoff-Gemisch, das eine spezielle
Kaltstarteinrichtung, der sog. Choke, liefert.
Zum Aktivieren des Chokes (Kaltstartanreiche-
rung des Gemischs) den Chokehebel 1 bis
zum Anschlag herausziehen. Zum Abschalten
des Chokemechanismus (normaler Fahrbe-
trieb mit warmem Motor) den Hebel bis zum
Anschlag zurückschieben. PEDALE DE FREIN ARRIERE
La pédale de frein arrière 1 se trouve du côté droit
de la machine. Appuyer sur la pédale pour action-
ner le frein arrière.
ROBINET A ESSENCE
Le robinet de carburant fournit le carburant du
réservoir au carburateur, tout en le filtrant. Le robi-
net de carburant a trois positions:
OFF: Avec le levier à cette position, l’essence ne
coule pas. Toujours remettre le levier à cette
position quand le moteur est arrêté.
ON: Avec le levier à cette position, l’essence
arrive au carburateur. La conduite normale
est faite avec le levier à cette position.
RES: Position réserve. Quand le carburant vient à
manquer au cours d’une randonnée, placer le
levier à cette position. FAIRE LE PLEIN
DES QUE POSSIBLE. REMETTRE LE
LEVIER SUR “ON” APRES AVOIR FAIT
LE PLEIN.
LEVIER DE STARTER
La mise en marche à froid requiert un mélange air –
carburant plus riche. C’est le circuit de starter,
commandé par le levier de starter 1, qui fournit ce
mélange plus riche.
Tirer sur le levier pour ouvrir le circuit (pour la
mise en marche) et enfoncer le levier pour refermer
le circuit.
1 - 10

2 - 16
SPEC

CABLE ROUTING DIAGRAM
CABLE ROUTING DIAGRAM
1
Crankcase breather hose
2
Wire harness
3
CDI magneto lead
4
Starter cable
5
Engine stop switch lead
6
Air filter case
7
Spark plug lead
8
Throttle cable
9
Fuel tank breather hose
0
Cable holder
A
Brake cable

After fastening the starter cable, CDI magneto lead and ignition coil
lead, cut off any excess from the plastic locking tie end.
õ
Pass the ignition coil lead through the lead guide.
‚
Fasten the engine stop switch lead with the plastic bands.
ë
Pass the brake cable through the cable guides.
12345
6
7
8
9 0
4
A 1
õ
‚
ë
ë
A
A

SPEC

CHEMINEMENT DES CABLES
KABELFÜHRUNG
KABELFÜHRUNG
1
Kurbelgehäuse-Entlüftungsschlauch
2
Kabelbaum
3
CDI-Schwungradmagnetzünder-Kabel
4
Chokezug
5
Motorstoppschalter-Kabel
6
Luftfiltergehäuse
7
Zündkabel
8
Gaszug
9
Kraftstofftank-Belüftungsschlauch
0
Kabelführung
A
Bremszug

Starterkabel, Lichtmaschinenkabel und
Zündspulenkabel befestigen, anschließend
überschüssiges Ende des Kabelbinders
abschneiden.
õ
Zündspulenkabel durch Kabelführung leiten.
‚
Motorstoppschalter-Kabel mit Kabelbindern
befestigen.
ë
Bremszug durch Kabelführungen leiten.
CHEMINEMENT DES CABLES
1
Reniflard de carter
2
Faisceau de fils
3
Fil de magnéto CDI
4
Câble de starter
5
Fil de coupe-circuit du moteur
6
Boîtier de filtre à air
7
Fil de bougie
8
Câble des gaz
9
Reniflard de réservoir de carburant
0
Support de câble
A
Câble de frein

Après avoir attaché le câble de starter, fil de volant
magnétique CDI et le fil de bobine d'allumage, cou-
per la partie excédentaire du lien en plastique.
õ
Faire passer le fil de bobine d'allumage par le guide
de fil.
‚
Attacher le fil de coupe-circuit du moteur à l'aide
d'attaches réutilisables.
ë
Faire passer le câble de frein par les guides de câble.
2 - 16

3 - 1
INSP
ADJ

MAINTENANCE INTERVALS/
PERIODIC MAINTENANCE AND LUBRICATION
EC300000
REGULAR INSPECTION AND ADJUSTMENTS
EC310022
MAINTENANCE INTERVALS
The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind
that such factors as weather, terrain, geographical location, and individual usage will alter the
required maintenance and lubrication intervals. If you are a doubt as to what intervals to follow in
maintaining and lubricating your machine, consult your Yamaha dealer.
PERIODIC MAINTENANCE AND LUBRICATION
Dealer
NoteItem Checks and maintenance jobsInitial Every
10 hours
(1 month)60 hours
(6 months)120 hours
(12 months)
* Fuel lineCheck fuel hoses for cracks or damage.
Replace if necessary.
Spark plugCheck condition.
Clean, regap or replace if necessary.
* ValvesCheck valve clearance.
Adjust if necessary.
Air filter Clean or replace if necessary.
* CarburetorCheck engine idling speed and starter operation.
Adjust if necessary.
Exhaust systemsCheck for leakage.
Retighten if necessary.
Replace gasket if necessary.
Engine oilCheck oil level and vehicle for oil leakage.
Correct if necessary.
Change. (Warm engine before draining.)
ClutchCheck operation.
Adjust or replace cable.
* Front brakeCheck operation.
Adjust brake lever free play and replace brake
shoes if necessary.Every ride
* Rear brakeCheck operation.
Adjust brake pedal free play and replace brake
shoes if necessary.Every ride
* WheelsCheck balance, runout, spoke tightness and for
damage.
Tighten spokes and rebalance, replace if
necessary.
* TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.
* Wheel bearingsCheck bearing for looseness or damage.
Replace if necessary.
* SwingarmCheck swingarm pivoting point for play.
Correct if necessary.
Lubricate with lithium soap base grease.
Drive chainCheck chain slack.
Adjust if necessary. Make sure that the rear wheel
is properly aligned.
Clean and lubricate.Every ride
* Steering bearingsCheck bearing play and steering for roughness.
Correct accordingly.
Lubricate with lithium soap base grease every 120
hours.
3
3

3 - 2
INSP
ADJ

PRE-OPERATION INSPECTION AND MAINTENANCE
*: Since these items requires special tools data and technical skills, they should be serviced.
SERVICE NOTES:

No. 1. DRIVE CHAIN: In addition to tension and alignment, chain must be lubricated every
0.5 ~ 1.0 hour. If unit is subjected to extremely hard usage and wet weather riding, chain
must be checked constantly. See “Lubrication Intervals” for additional details.
No. 2. AIR FILTER: Remove and clean filter every 20 ~ 40 hours.
EC320000
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good operating
condition.
Before using this machine, check the following points.
EC321000
GENERAL INSPECTION AND MAINTENANCE
* Chassis fastenersMake sure that all nuts, bolts and screws are
properly tightened.
Tighten if necessary.
SidestandCheck operation.
Lubricate and repair if necessary.
* Spark arrester Clean.
* Front forkCheck operation and for oil leakage.
Correct accordingly.
*Rear shock
absorber assemblyCheck operation and shock absorber for oil
leakage.
Replace shock absorber assembly if necessary.
Item Routine Page
Brake Check operation/adjustment. P3-11
Engine oil Change oil as required. P3-5 ~ 7
Drive chain Check alignment/adjustment/lubrication. P3-12
Spark plug Check color/condition. P3-19
Throttle Check for proper throttle cable operation. P3-3
Air filter Foam type – must be clean and damp w/oil always P3-3 ~ 4
Wheels and tires Check pressure/runout/spoke tightness/bead stopper/axle nuts. P3-15 ~ 17
Fittings/fasteners Check all – tighten as necessary. —Dealer
NoteItem Checks and maintenance jobsInitial Every
10 hours
(1 month)60 hours
(6 months)120 hours
(12 months)
3

3 - 3
INSP
ADJ

ENGINE/THROTTLE CABLE ADJUSTMENT/
AIR FILTER CLEANING
EC350000
ENGINE
EC35A001
THROTTLE CABLE ADJUSTMENT
1. Check:
l
Throttle grip free play
a

Out of specification
®
Adjust.
Throttle grip free play
a
:
3 ~ 5 mm (0.12 ~ 0.20 in)
2. Adjust:
l
Throttle grip free play
EC35G040
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.Throttle grip free play adjustment steps:
Turning in: Free play is increased.
Turning out: Free play is decreased.
l
Tighten the locknuts.
NOTE:
Before adjusting the throttle cable free play,
the engine idle speed should be adjusted.
lLoosen the locknut 1 on throttle cable.
lTurn the adjuster 2 in or out until the
specified free play is obtained.
WARNING
After adjusting, turn the handlebar to
right and left and make sure that the
engine idling does not run faster.