YAMAHA WR 400F 2000 Manual PDF

GEN
INFO
NETTOYAGE ET RANGEMENT
REINIGUNG UND STILLEGUNG
LIMPIEZA Y ALMACENAMIENTO
STILLEGUNG
Vor einer mehr als zweimonatigen
Stillegung sollten einige Schutzvor-
kehrungen getroffen werden, um
Schäden zu verhindern. Das Fahr-
zeug zuerst gründlich reinigen und
dann folgendermaßen zur Stillegung
vorbereiten:
1. Kraftstofftank, Kraftstoffleitun-
gen und Vergaser-Schwim-
merkammer entleeren.
2. Die Zündkerze herausschrau-
ben, ungefähr einen Teelöffel
Motoröl in die Kerzenbohrung
geben und die Zündkerze wie-
der hineinschrauben. Bei ge-
drücktem Motorstoppschalter
den Kickstarter mehrmals
durchtreten, um das Öl in der
Zylinderlaufbuchse zu vertei-
len.
3. Die Antriebskette lösen,
gründlich reinigen und dann
schmieren. Die Kette wieder
montieren oder in einem am
Rahmen befestigten Plastik-
beutel aufbewahren.
4. Alle Seilzüge ölen.
5. Das Fahrzeug ganz aufbok-
ken, um beide Räder vom Bo-
den abzuheben.
6. Eine Plastiktüte über die
Schalldämpferöffnung stül-
pen, um Eindringen von
Feuchtigkeit zu verhindern.
7. Bei Lagerung in extrem feuch-
ter oder salzhaltiger Luft auf
alle Metalloberflächen einen
dünnen Ölfilm auftragen. Je-
doch niemals Gummiteile oder
den Sitzbankbezug einölen.
HINWEIS:
Anfallende Reparaturen vor der Still-
legung ausführen. RANGEMENT
Si l’on remise la machine pour 60 jours
ou plus, il faut prendre des mesures de
conservation pour éviter sa détérioration.
Après un nettoyage soigné, préparer la
machine de la manière suivante:
1. Vider le réservoir, les conduites
d’essence et la cuve du carbura-
teur.
2. Déposer la bougie, verser une
cuillère à soupe d’huile moteur
SAE 10W-30 dans le trou de bou-
gie, et la remettre en place.
Coupe-circuit à la position arrêt,
donner plusieurs coups de pédale
pour enduire le cylindre d’huile.
3. Déposer la chaîne, la nettoyer soi-
gneusement au dissolvant et
lubrifier. Remonter la chaîne ou
la ranger dans un sachet plastique
fermé fixé au cadre.
4. Lubrifier tous les câbles de com-
mande.
5. Mettre le cadre sur plots pour
soulever les roues du sol.
6. Fixer un sachet plastique sur la
sortie du pot d’échappement pour
éviter l’introduction d’humidité.
7. Si la machine est placée dans une
atmosphère humide ou marine,
enduire toutes les surfaces métal-
liques nues d’une fine couche
d’huile. Ne pas appliquer d’huile
sur les parties en caoutchouc ou
sur la selle.
N.B.:
Avant de ranger la machine, effectuer
toutes les réparations en souffrance.
1 - 19ALMACENAMIENTO
Si necesita guardar el vehículo durante
60 días o más, debe tomar algunas medi-
das preventivas para evitar que se dete-
riore. Después de limpiar a fondo el
vehículo, prepárelo para el almacena-
miento tal y como se indica a continua-
ción:
1. Drene el depósito de combustible,
las líneas de combustible y la
cubeta del flotador del carbura-
dor.
2. Extraiga la bujía, vierta una
cucharada de aceite de motor
SAE 10W-30 en el orificio de la
bujía y vuelva a colocar la bujía.
Con el interruptor de parada del
motor pulsado hacia adentro,
mueva el motor varias veces para
cubrir las paredes del cilindro con
aceite.
3. Extraiga la cadena de la caja de
cambios, límpiela a fondo con
disolvente y engrásela. Vuelva a
montar la cadena o guárdela en
una bolsa de plástico atada al bastidor.
4. Engrase todos los cables de con-
trol.
5. Bloquee el bastidor para elevar
las ruedas del suelo.
6. Ate una bolsa de plástico alrede-
dor de la salida del tubo de escape
para evitar que penetre humedad.
7. Si va a guardar el vehículo en un
ambiente húmedo o salino, cubra
toda la superficie de metal
expuesta con una capa fina de
aceite. No aplique aceite a las pie-
zas de goma o a la cubierta del
asiento.
NOTA:
Realice cualquier reparación necesaria
antes de guardar el vehículo.

2 - 1
SPEC

GENERAL SPECIFICATIONS
EC200000
SPECIFICATIONS
EC211000
GENERAL SPECIFICATIONS
Model name: WR400F (EUROPE)
WR400FM (USA)
WR400F(M) (CDN, AUS, NZ, ZA)
Model code number: 5GS5 (USA)
5GS6 (EUROPE)
5GS8 (CDN, AUS, NZ, ZA)
Dimensions:
Overall length 2,171 mm (85.5 in)
Overall width 827 mm (32.6 in)
Overall height 1,303 mm (51.3 in)
Seat height 998 mm (39.3 in)
Wheelbase 1,490 mm (58.7 in)
Minimum ground clearance 373 mm (14.7 in)
Basic weight:
With oil and full fuel tank 122.0 kg (270 lb)
Engine:
Engine type Liquid cooled 4-stroke, DOHC
Cylinder arrangement Single cylinder, forward inclined
Displacement 399 cm
3

(14.1 Imp oz, 13.5 US oz)
Bore

´

stroke 92.0
´
60.1 mm (3.62
´
2.37 in)
Compression ratio 12.5 : 1
Starting system Kick starter
Lubrication system: Dry sump
Oil type or grade:
Engine oil
[For USA and CDN]
At 5 ˚C (40 ˚F) or higher

Yamalube 4 (20W-
40) or SAE 20W-40 type SH motor oil (Non-
Friction modified)
At 15 ˚C (60 ˚F) or lower
õ
Yamalube 4 (10W-
30) or SAE 10W-30 type SH motor oil (Non-
Friction modified) and/or Yamalube 4-R (15W-
50) (Non-Friction modified)
[Except for USA and CDN]
API “SH” or higher grade
(Designed primarily for motorcycles)
-20
-4-10
140
3010
5020
6830
8640 50
104
122¡CTemp.
¡F
10W/30
10W/40
20W/40
20W/50

2

2 - 2
SPEC

GENERAL SPECIFICATIONS
Oil capacity:
Engine oil
Periodic oil change 1.5 L (1.32 Imp qt, 1.59 US qt)
With oil filter replacement 1.6 L (1.41 Imp qt, 1.69 US qt)
Total amount 1.7 L (1.50 Imp qt, 1.80 US qt)
Coolant capacity (including all routes): 1.2 L (1.06 Imp qt, 1.27 US qt)
Air filter: Wet type element
Fuel:
Type Premium unleaded fuel with a research octane
number of 95 or higher. (Except for AUS)
Unleaded fuel only (For AUS)
Tank capacity 12 L (2.64 Imp gal, 3.17 US gal)
(For USA, CDN)
Reserve 8 L (1.76 Imp gal, 2.11 US gal)
(Except for USA, CDN)
1.6 L (0.35 Imp gal, 0.42 US gal)
(For USA, CDN)
1.4 L (0.31 Imp gal, 0.37 US gal)
(Except for USA, CDN)
Carburetor:
Type FCR-MX39
Manufacturer KEIHIN
Spark plug:
Type/manufacturer CR8E/NGK
U24ESR-N/DENSO
Gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
Clutch type: Wet, multiple-disc
Transmission:
Primary reduction system Gear
Primary reduction ratio 62/21 (2.952)
Secondary reduction system Chain drive
Secondary reduction ratio 50/14 (3.571)
Transmission type Constant mesh, 5-speed
Operation Left foot operation
Gear ratio: 1st 29/12 (2.416)
2nd 26/15 (1.733)
3rd 21/16 (1.312)
4th 21/20 (1.050)
5th 21/25 (0.840)
Chassis:
Frame type Semi double cradle
Caster angle 27.8˚
Trail 123 mm (4.84 in)
2

2 - 3
SPEC

GENERAL SPECIFICATIONS
Tire:
Type With tube
Size (front) 80/100-21 51M (USA, CDN, ZA)
90/90-21 54R (EUROPE, AUS, NZ)
Size (rear) 110/100-18 64M (USA, CDN, ZA)
120/90-18 65R (EUROPE, AUS, NZ)
Tire pressure (front and rear) 100 kPa (1.0 kg/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

2 - 4
SPEC

MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Item Standard Limit
Cylinder head:
Warp limit ---- 0.05 mm
(0.002 in)
Cylinder:
Bore size92.00 ~ 92.01 mm
(3.6220 ~ 3.6224 in)----
Out of round limit ---- 0.05 mm
(0.002 in)
Camshaft:
Drive method Chain drive (Left) ----
Camshaft cap inside diameter22.000 ~ 22.021 mm
(0.8661 ~ 0.8670 in)----
Camshaft bearing diameter21.967 ~ 21.980 mm
(0.8648 ~ 0.8654 in)----
Camshaft-to-cap clearance0.020 ~ 0.054 mm
(0.0008 ~ 0.0021 in)0.08 mm
(0.003 in)
Cam dimensions
Intake “A” 31.7 ~ 31.8 mm
(1.248 ~ 1.252 in)31.6 mm
(1.244 in)
“B” 22.95 ~ 23.05 mm
(0.9035 ~ 0.9075 in)22.85 mm
(0.900 in)
Exhaust “A” 31.2 ~ 31.3 mm
(1.2283 ~ 1.2323 in)31.1 mm
(1.224 in)
“B” 22.95 ~ 23.05 mm
(0.9035 ~ 0.9075 in)22.85 mm
(0.900 in)
Camshaft runout limit ---- 0.03 mm
(0.0012 in)
A
B

2 - 5
SPEC

MAINTENANCE SPECIFICATIONS
Cam chain:
Cam chain type/No. of links 92RH2010-120MPX/120 ----
Cam chain adjustment method Automatic ----
Valve, valve seat, valve guide:
Valve clearance (cold) IN 0.15 ~ 0.20 mm
(0.0059 ~ 0.0079 in)----
EX 0.25 ~ 0.30 mm
(0.0098 ~ 0.0118 in)----
Valve dimensions:
“A” head diameter IN 26.9 ~ 27.1 mm
(1.0591 ~ 1.0669 in)----
EX 27.9 ~ 28.1 mm
(1.0984 ~ 1.1063 in)----
“B” face width IN 2.26 mm (0.089 in) ----
EX 2.26 mm (0.089 in) ----
“C” seat width IN0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)1.5 mm
(0.0591 in)
EX 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)1.5 mm
(0.0591 in)
“D” margin thickness IN 1 mm (0.0394 in) 0.85 mm
(0.033 in)
EX 1 mm (0.0394 in) 0.85 mm
(0.033 in)
Stem outside diameter IN4.475 ~ 4.490 mm
(0.1762 ~ 0.1768 in)----
EX 4.960 ~ 4.975 mm
(0.1953 ~ 0.1959 in)----
Guide inside diameter IN 4.500 ~ 4.512 mm
(0.1772 ~ 0.1776 in)----
EX 5.000 ~ 5.012 mm
(0.1969 ~ 0.1973 in)----
Stem-to-guide clearance IN0.010 ~ 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
Head Diameter
B
Face WidthC
Seat Width
D
Margin ThicknessA

2 - 6
SPEC

MAINTENANCE SPECIFICATIONS
Stem runout limit ---- 0.01 mm
(0.0004 in)
Valve seat width IN0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)----
EX 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)----
Valve spring:
Free length IN 40.37 mm (1.59 in) 39.4 mm
(1.55 in)
EX 42.66 mm (1.68 in) 41.7 mm
(1.64 in)
Set length (valve closed) IN 32.86 mm (1.29 in) ----
EX 35.38 mm (1.39 in) ----
Compressed pressure
(installed) IN 117 ~ 134 N
(11.9 ~ 13.7 kg, 26.23 ~ 30.20 lb)----
EX 126 ~ 138 N
(12.9 ~ 14.1 kg, 28.44 ~ 31.08 lb)----
Tilt limit IN ----2.5˚/1.8 mm
(2.5˚/0.067 in)
EX ----2.5˚/1.9 mm
(2.5˚/0.075 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” 91.945 ~ 91.960 mm
(3.6199 ~ 3.6205 in)----
Measuring point “H” 9 mm (0.354 in) ----
Piston off-set 1 mm (0.0394 in) ----Item Standard Limit
*
H
D

2 - 7
SPEC

MAINTENANCE SPECIFICATIONS
Piston pin bore inside diameter18.004 ~ 18.015 mm
(0.7088 ~ 0.7093 in)----
Piston pin outside diameter17.991 ~ 18.000 mm
(0.7083 ~ 0.7087 in)----
Piston rings:
Top ring
Type Barrel ----
Dimensions (B

´

T) 1.2
´
3.5 mm (0.05
´
0.14 in) ----
End gap (installed) 0.20 ~ 0.35 mm
(0.008 ~ 0.014 in)0.7 mm
(0.028 in)
Side clearance (installed) 0.030 ~ 0.065 mm
(0.0012 ~ 0.0026 in)0.13 mm
(0.005 in)
2nd ring
Type Taper ----
Dimensions (B

´

T) 1.00
´
3.35 mm (0.04
´
0.13 in) ----
End gap (installed) 0.40 ~ 0.55 mm
(0.016 ~ 0.022 in)0.8 mm
(0.031 in)
Side clearance 0.020 ~ 0.055 mm
(0.0008 ~ 0.0022 in)0.13 mm
(0.005 in)
Oil ring
Dimensions (B

´

T) 2.0
´
2.9 mm (0.08
´
0.11 in) ----
End gap (installed) 0.2 ~ 0.5 mm (0.01 ~ 0.02 in) ----
Crankshaft:
Crank width “A” 61.95 ~ 62.00 mm
(2.439 ~ 2.441 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)
Balancer:
Balancer drive method Gear ----
Decompression device:
Type Manual ----
Cable free play 5 ~ 9 mm (0.20 ~ 0.35 in)
Air filter oil grade: Engine oil ----Item Standard Limit
T
B
B
T
B
T

2 - 8
SPEC

MAINTENANCE SPECIFICATIONS
Clutch:
Friction plate 1 thickness 2.72 ~ 2.88 mm
(0.107 ~ 0.113 in)2.5 mm
(0.98 in)
Inner diameter ø112 mm (4.41 in) ----
Quantity 7 ----
Friction plate 2 thickness 2.92 ~ 3.08 mm
(0.115 ~ 0.121 in)2.7 mm
(0.106 in)
Inner diameter ø116 mm (4.57 in) ----
Quantity 1 ----
Clutch plate thickness 1.1 ~ 1.3 mm (0.043 ~ 0.051 in) ----
Quantity 7 ----
Warp limit ---- 0.2 mm
(0.008 in)
Clutch spring free length 44 mm (1.73 in) 43 mm
(1.69 in)
Quantity 5 ----
Clutch housing thrust clearance 0.20 ~ 0.45 mm
(0.0079 ~ 0.0177 in)----
Clutch housing radial clearance 0.010 ~ 0.044 mm
(0.0004 ~ 0.0017 in)----
Clutch release method Inner push, cam push ----
Shifter:
Shifter type Cam drum and guide bar ----
Guide bar bending limit ---- 0.05 mm
(0.002 in)
Kick starter:
Type Ratchet type ----
Carburetor:
USAEUROPE, CDN,
AUS, NZ, ZA
I. D. mark 5GS5 50 5GS6 60 ----
Main jet (M.J) #165
¬
----
Main air jet (M.A.J) #200
¬
----
Jet needle (J.N) OBDRS-3 OBDRQ-4 ----
Cutaway (C.A) 15
¬
----
Pilot air jet 1 (P.A.J.1) #75
¬
----
Pilot air jet 2 (P.A.J.2) #90
¬
----
Pilot outlet (P.O) 0.9
¬
----
Pilot jet (P.J) #42
¬
----
Pilot screw (example) (P.S) 1-5/8 1-1/2 ----
Bypass 1 (B.P.1) 1.0
¬
----
Valve seat size (V.S) 3.8
¬
----
Starter jet 1 (G.S.1) #65
¬
----
Float height (F.H) 8 mm (0.31 in)
¬
----
Engine idle speed 1,700 ~
1,900 r/min
¬
----
Intake vacuum33.3 ~ 38.7 kPa
(250 ~ 290 mmHg,
9.84 ~ 11.42 inHg)
¬
---- Item Standard Limit

2 - 9
SPEC

MAINTENANCE SPECIFICATIONS
Lubrication system:
Oil filter type Wire mesh type ----
Oil pump type Trochoid type ----
Tip clearance “A” 0.07 ~ 0.12 mm
(0.0028 ~ 0.0047 in)0.15 mm
(0.006 in)
“B” 0.09 ~ 0.15 mm
(0.0035 ~ 0.0059 in)0.22 mm
(0.009 in)
Side clearance 0.03 ~ 0.08 mm
(0.0012 ~ 0.0031 in)0.15 mm
(0.006 in)
Bypass valve setting pressure 40 ~ 80 kPa (0.4 ~ 0.8 kg/cm
2

,
5.69 ~ 11.38 psi)----
Cooling:
Radiator core size
Width 117.8 mm (4.6 in) ----
Height 260 mm (10.2 in) ----
Thickness 32 mm (1.26 in) ----
Radiator cap opening pressure110 kPa (1.1 kg/cm
2

, 15.6 psi)----
Radiator capacity (total) 0.76 L (0.67 lmp qt, 0.80 US qt) ----
Water pump
Type Single-suction centrifugal pump ----Item Standard Limit