clock YAMAHA WR 250F 2006 Owners Manual

YAMAHA WR 250F 2006 Owners Manual WR 250F 2006 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52334/w960_52334-0.png YAMAHA WR 250F 2006 Owners Manual

Page 60 of 900

YAMAHA WR 250F 2006  Owners Manual 1 - 35
GEN
INFOMULTI-FUNCTION DISPLAY
MULTI-FUNCTION 
DISPLAY
WARNING
Be sure to stop the machine
before making any setting
changes to the multi-function dis-
play.
The multi-function display is
equip

Page 72 of 900

YAMAHA WR 250F 2006  Owners Manual 1 - 47
GEN
INFO
MULTI-FUNCTION DISPLAY
FUNCTION DIAGRAM
NOTE:The following diagram illustrates the multi-function display regarding the direction and operation condition involved in each
of its functi

Page 99 of 900

YAMAHA WR 250F 2006  Owners Manual MAINTENANCE SPECIFICATIONS
2 - 6
SPEC
Stem runout limit ---- 0.01 mm 
(0.0004 in)
Valve seat width IN 0.9 ~ 1.1 mm 
(0.0354 ~ 0.0433 in)1.6 mm 
(0.0630 in)
EX 0.9 ~ 1.1 mm 
(0.0354 ~ 0.0433 in)1.6 mm

Page 228 of 900

YAMAHA WR 250F 2006  Owners Manual 3 - 21
INSP
ADJ
EC350000
ENGINE
COOLANT LEVEL INSPECTION
WARNING
Do not remove the radiator cap 1,
drain bolt and hoses when the
engine and radiator are hot. Scald-
ing hot fluid and steam may be
blow

Page 258 of 900

YAMAHA WR 250F 2006  Owners Manual 3 - 51
INSP
ADJ
5. Check:
Valve clearance
Out of specification 
→ Adjust. 
Valve clearance (cold):
Intake valve:
0.10 ~ 0.15 mm 
(0.0039 ~ 0.0059 in)
Exhaust valve:
0.17 ~ 0.22 mm 
(0.0067 ~ 0.0087

Page 290 of 900

YAMAHA WR 250F 2006  Owners Manual 3 - 83
INSP
ADJ
3. Adjust:
Drive chain slack
DRIVE CHAIN STOPPER 
INSPECTION
1. Inspect:
Drive chain stopper 
1 
Wear indicator groove 
a has
almost disappeared 
→
Replace.
2. Replace:
Drive chai

Page 358 of 900

YAMAHA WR 250F 2006  Owners Manual 4 - 17
ENGRADIATOR
EC456000HANDLING NOTE
WARNING
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot fluid and steam
may be blown out under pressure,
which could cause se

Page 406 of 900

YAMAHA WR 250F 2006  Owners Manual 4 - 65
ENGCAMSHAFTS
REMOVAL POINTS
Camshaft
1. Remove:
Timing mark accessing screw
1 
Crankshaft end accessing
screw 
2 
2. Align:
T.D.C. mark
With align mark.
Checking steps:
Turn the crankshaft

Page 412 of 900

YAMAHA WR 250F 2006  Owners Manual 4 - 71
ENGCAMSHAFTS
Decompression system
1. Check:
Decompression system
Checking steps:
Check that the decompression
mechanism cam 
1 moves
smoothly.
Check that the decompression
mechanism cam leve

Page 414 of 900

YAMAHA WR 250F 2006  Owners Manual 4 - 73
ENGCAMSHAFTS
Fit the timing chain 
3 onto both
camshaft sprockets and install
the camshafts on the cylinder
head.
NOTE:The camshafts should be installed
onto the cylinder head so that the
punc
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