Yamaha YZ250F(W) Owner's Service Manual page 444

a
CRANKCASE AND CRANKSHAFT
4
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REMOVAL POINTS
Crankcase
1. Separate:
• Right crankcase
• Left crankcase
Separation steps:
• Remove the crankcase bolts 1, hose
guide 2 and clutch cable holder 3.
NOTE:
Loosen each bolt 1/4 of a turn at a time and
after all the bolts are loosened, remove
them.
• Remove the right crankcase 4.
NOTE:
• Place the crankcase with its left half down-
ward and split the right half apart while lift-
ing it horizontally by lightly tapping the
projection a on it using a soft hammer.
• When splitting it, leave the crankshaft and
transmission with the left half.
CAUTION:
Use soft hammer to tap on the case half.
Tap only on reinforced portions of case.
Do not tap on gasket mating surface.
Work slowly and carefully. Make sure the
case halves separate evenly. If the cases
do not separate, check for a remaining
case bolt or fitting. Do not force.
• Remove the dowel pins and O-ring.
ENG