2007 YAMAHA WR 250F light

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Page 16 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 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 24 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) CHAPTER 7
ELECTRICAL
ELECTRICAL COMPONENTS 
AND WIRING DIAGRAM............  7-1
IGNITION SYSTEM....................  7-5
ELECTRIC STARTING 
SYSTEM...................................  7-19
CHARGING SYS

Page 26 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 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 32 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 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 37 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 1 - 12
GEN
INFO
SPECIAL TOOLS
YS-1880-A, 90890-01701 Sheave holder
This tool is used for when loosening or tightening the 
flywheel magneto securing nut.
YU-3112-C, 90890-03112 Pocket tester
Use this

Page 52 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 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 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 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 64 of 912

YAMAHA WR 250F 2007  Manuale de Empleo (in Spanish) 1 - 39
GEN
INFOMULTI-FUNCTION DISPLAY
CHANGEOVER TO BASIC MODE/
RACE MODE
NOTE:Measurement using the timer func-
tion can be made in RACE MODE.
Indicator will light up as an iden-
tifier that shows
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