2005 YAMAHA YZ250F Owners Manual

Page 33 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
ERSATZTEILE
1. Es wird empfohlen, nur Original-
Ersatzteile von Yamaha zu ver-
wenden. Nur von Yamaha emp-
fohlene Schmiermittel verwen-
den.
DICHTUNGEN, DICHTRINGE UND 
O-RINGE
1. Beim Über

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YAMAHA YZ250F 2005  Owners Manual 1 - 5
GEN
INFO
IMPORTANT INFORMATION
EC136000
CIRCLIPS
1. All circlips should be inspected carefully
before reassembly. Always replace piston
pin clips after one use. Replace distorted
circlips. When

Page 35 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
SICHERUNGSRINGE
1. Sicherungsringe vor dem Wie-
dereinbau sorgfältig kontrollie-
ren. Kolbenbolzen-Sicherungs-
ringe müssen nach jedem
Ausbau erneuert werden. Bei
Verformung oder Beschädig

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YAMAHA YZ250F 2005  Owners Manual 1 - 6
GEN
INFO
CHECKING OF CONNECTION
EC1C0001
CHECKING OF CONNECTION
Dealing with stains, rust, moisture, etc. on the
connector.
1. Disconnect:
Connector
2. Dry each terminal with an air blower.
3.

Page 37 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
KABELANSCHLÜSSE 
KONTROLLIEREN
Sämtliche Steckverbinderkontakte
und Kabelanschlüsse auf Flecke,
Rost, Feuchtigkeit u. ä. kontrollieren.
1. Lösen:
Steckverbinder
2. Sämtliche Kontakte m

Page 38 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
1 - 7
SPECIAL TOOLS
SPECIAL TOOLS
The proper special tools are necessary for complete and accurate tune-up and assembly. Using the
correct special tool will help prevent damage caused by the

Page 39 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
1 - 8
SPECIAL TOOLS
YU-33975, 90890-01403 Steering nut wrench
This tool is used when tighten the steering ring nut to 
specification.YU-33975 90890-01403
YM-01442, 90890-01442 Fork seal drive

Page 40 of 668

YAMAHA YZ250F 2005  Owners Manual GEN
INFO
1 - 9
SPECIAL TOOLS
YM-4112, 90890-04112
YM-4117, 90890-04117Valve guide installer
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to install the valve guide.YM-4112
YM-4