2006 YAMAHA WR 250F engine

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Page 26 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 1
GEN
INFODESCRIPTION
EC100000
GENERAL INFORMATION
EC110000
DESCRIPTION
1Clutch lever
2Hot starter lever
3Engine stop switch
4Multi-function display
5Main switch
6Start switch
7Front brake lever
8

Page 28 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 3
GEN
INFOMACHINE IDENTIFICATION
EC120001
MACHINE 
IDENTIFICATION
There are two significant reasons for
knowing the serial number of your
machine:
1. When ordering parts, you can
give the number t

Page 32 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 7
GEN
INFOIMPORTANT INFORMATION
EC133000GASKETS, OIL SEALS AND O-
RINGS
1. All gaskets, oil seals, and O-
rings should be replaced when
an engine is overhauled. All gas-
ket surfaces, oil seal lip

Page 52 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 27
GEN
INFO
EC150000
CONTROL FUNCTIONS
MAIN SWITCH
Functions of the respective switch
positions are as follows:
ON:
The engine can be started only at
this position.
OFF:
All electrical circuits ar

Page 54 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 29
GEN
INFO
EC153000SHIFT PEDAL
The gear ratios of the constant-mesh
5 speed transmission are ideally
spaced. The gears can be shifted by
using the shift pedal 
1 on the left
side of the engine.
K

Page 56 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 31
GEN
INFO
FUEL COCK
The fuel cock supplies fuel from the
tank to carburetor and also filters the
fuel. The fuel cock has three posi-
tions:
OFF: With the lever in this position,
fuel will not fl

Page 74 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 49
GEN
INFO
FUEL
Always use the recommended fuel
as stated below. Also, be sure to use
new gasoline the day of a race.
CAUTION:
Use only unleaded gasoline. The
use of leaded gasoline will cause
se

Page 76 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 1 - 51
GEN
INFO
STARTING AND 
BREAK-IN
WARNING
Never start or run the engine in a
closed area. The exhaust fumes
are poisonous; they can cause
loss of consciousness and death
in a very short time. Alw
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