Yamaha WR250F Manuel D'atelier page 186

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THROTTLE LUBRICATION/
DECOMPRESSION ADJUSTMENT
3 - 11
THROTTLE LUBRICATION
1. Remove:
Rubber cover 1
Throttle grip cap 2
2. Apply:
Lithium soap base grease
On the throttle cable end a.
3. Install:
Throttle grip cap
Screw (throttle grip cap)
4 Nm (0.4 m · kg, 2.9 ft · lb)
Rubber cover
DECOMPRESSION ADJUSTMENT
1. Check:
Decompression lever free play a
Out of specification → Adjust.
Checking steps:
Remove the timing mark accessing screw
1 and crankshaft end accessing screw
2.
Turn the crankshaft counterclockwise with
a wrench.
NOTE:
Squeezing the decompression lever allows
the crankshaft to be turned easily.
Align the T.D.C. mark b on the rotor with
the align mark c on the crankcase cover
when piston is at T.D.C. on compression
stroke.
Check the free play.
Free play a:
5 ~ 9 mm (0.20 ~ 0.35 in)
INSP
ADJ