engine YAMAHA WR 250F 2007 Owners Manual

YAMAHA WR 250F 2007 Owners Manual WR 250F 2007 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52333/w960_52333-0.png YAMAHA WR 250F 2007 Owners Manual

Page 6 of 912

YAMAHA WR 250F 2007  Owners Manual IMPORTANT NOTICE
THIS MACHINE IS DESIGNED
STRICTLY FOR COMPETITION
USE, ONLY ON A CLOSED
COURSE. It is illegal for this machine
to be operated on any public street,
road, or highway. Off-road use on
p

Page 8 of 912

YAMAHA WR 250F 2007  Owners Manual 6. GASOLINE CAN CAUSE
INJURY.
If you should swallow some
gasoline, inhale excess
gasoline vapors, or allow
any gasoline to get into
your eyes, contact a doctor
immediately. If any gaso-
line spills on

Page 12 of 912

YAMAHA WR 250F 2007  Owners Manual EC080000
HOW TO USE THIS 
MANUAL
EC081000
PARTICULARLY 
IMPORTANT 
INFORMATION
The Safety Alert Symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
Failure to follow WARNING instruc-
tions

Page 16 of 912

YAMAHA WR 250F 2007  Owners Manual ILLUSTRATED SYMBOLS 
(Refer to the illustration)
Illustrated symbols 1 to 7 are
designed as thumb tabs to indicate
the chapter’s number and content.
1General information
2Specifications
3Regular ins

Page 18 of 912

YAMAHA WR 250F 2007  Owners Manual EC090010
INDEX
GENERAL 
INFORMATION
SPECIFICATIONS
REGULAR 
INSPECTION AND 
ADJUSTMENTS
TUNING
ENGINE
CHASSIS
ELECTRICAL
INDEX
RENSEIGNEMENTS
GENERAUX
CARACTERISTI-
QUES
CONTROLES ET 
REGLAGES 
PERIOD

Page 20 of 912

YAMAHA WR 250F 2007  Owners Manual E0A0000
CONTENTS
CHAPTER 1
GENERAL 
INFORMATION
DESCRIPTION...........................  1-1
MACHINE IDENTIFICATION.....  1-3
IMPORTANT INFORMATION....  1-5
CHECKING OF 
CONNECTION.....................

Page 22 of 912

YAMAHA WR 250F 2007  Owners Manual CHAPTER 4
TUNING
ENGINE......................................  4-1
CHASSIS..................................  4-21
CHAPTER 5
ENGINE
RADIATOR.................................  5-1
CARBURETOR...........

Page 26 of 912

YAMAHA WR 250F 2007  Owners Manual 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 912

YAMAHA WR 250F 2007  Owners Manual 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 912

YAMAHA WR 250F 2007  Owners Manual 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
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