2015 YAMAHA WR 250F check engine

[x] Cancel search: check engine

Page 118 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-14
2. Lubricate:
• Throttle cable end “a” 
3. Install:
• Throttle grip cap
• Screw (throttle grip cap)
4. Install:
• Cover (grip cap)
• Cover (throttle cable cap)
EWA
WARNING
Ch

Page 119 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-15
6. Install:
• Air filter guide “1” (to the air filter element)
• Air filter element “2”
• Air filter mounting bolt “3”
7. Install:
• Air filter case cover “1”
TIP
A

Page 120 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-16
4. Install:
• Exhaust pipe protector
EAS2GB2097CHECKING THE FUEL LINE
1. Remove:
• Seat
• Side cover (left/right)
• Air scoop (left/right)
Refer to “GENERAL CHASSIS” on page 5-

Page 121 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-17
EAS2GB2099CHANGING THE ENGINE OIL
Stand the vehicle upright on a level surface.
1. Start the engine, warm this up for 3 minutes, 
and then stop the engine and wait about 5 
minutes.
2. Pla

Page 122 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-18
8. Install:
• Oil filler cap
9. Check:
• Oil level
Refer to “CHECKING THE ENGINE OIL 
LEVEL” on page 3-16.
10.Check:
• Engine oil pressure
▼▼▼▼▼▼▼▼▼▼▼▼▼

Page 123 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-19
4. Measure:
• Engine idling speed
Out of specification  Regulate.
5. Adjust:
• Engine idling speed
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼

Page 124 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-20
TIP
Check that the alignment mark “c” on the cam-
shaft sprocket and the alignment mark “d” on 
the intake camshaft sprocket are aligned with 
the edge of the cylinder head.
c. Mea

Page 125 of 430

YAMAHA WR 250F 2015  Owners Manual ENGINE
3-21
d. Select an adjusting pad with a proper valve 
clearance from the adjusting pad selection 
table.
TIP
• There are 25 types of adjusting pads, ranging 
from 1.20 mm (0.0472 in) to 2.40 m