CRANKCASE
5-64
EAS1SM9276
DISASSEMBLING THE CRANKCASE
1. Separate:
• Right crankcase
• Left crankcase
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a. Remove the crankcase bolts.
TIP
Loosen each bolt 1/4 of a turn at a time and af-
ter all the bolts are loosened, remove them.
b. Remove the right crankcase “1”.
TIP
• Place the crankcase with its left side down-
ward and split it by inserting a screwdriver tip
into the splitting slit “a” in the crankcase.
• Lift the right crankcase horizontally while light-
ly patting the crankcase splitting slit and the
engine mounting boss using a soft hammer,
and leave the crankshaft and the transmission
with the left crankcase.
ECA
NOTICE
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.
c. Remove the dowel pins and O-ring.
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EAS1SM9277
REMOVING THE CRANKCASE BEARING
1. Remove:
• Bearing “1”
TIP
• Remove the bearing from the crankcase by
pressing its inner race.
• Do not use the removed bearing.
EAS1SM9278
CHECKING THE TIMING CHAIN, TIMING
CHAIN GUIDE, OIL STRAINER
1. Check:
• Timing chain
Stiffness
Replace the camshaft sprocket,
timing chain and crankshaft sprocket as a
set.
2. Check:
• Timing chain guide
Damage/wear
Replace
EAS1SM9279
CHECKING THE CRANKCASE
1. Wash:
• Crankcase
TIP
• Wash the crankcase in a mild solvent.
• Remove any remaining gasket from the
crankcase mating surface.
2. Check:
• Crankcase
Crack/damage
Replace.
• Oil delivery passages
Obstruction
Blow out with compressed
air.
1
a
Содержание YZ250F 2016
Страница 4: ......
Страница 10: ......
Страница 12: ......
Страница 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR ...
Страница 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF ...
Страница 40: ...CLEANING AND STORAGE 1 26 ...
Страница 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22 ...
Страница 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Страница 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Страница 72: ...CABLE ROUTING DIAGRAM 2 31 EAS1SM9062 CABLE ROUTING DIAGRAM ...
Страница 74: ...CABLE ROUTING DIAGRAM 2 33 ...
Страница 76: ...CABLE ROUTING DIAGRAM 2 35 ...
Страница 78: ...CABLE ROUTING DIAGRAM 2 37 ...
Страница 80: ...CABLE ROUTING DIAGRAM 2 39 ...
Страница 82: ...CABLE ROUTING DIAGRAM 2 41 ...
Страница 122: ...ELECTRICAL SYSTEM 3 38 ...
Страница 190: ...CHAIN DRIVE 4 66 ...
Страница 286: ......
Страница 293: ...CHARGING SYSTEM 8 7 2 AC magneto 3 Rectifier regulator 4 Joint connector 5 Condenser ...
Страница 295: ...CHARGING SYSTEM 8 9 ...
Страница 321: ...FUEL PUMP SYSTEM 8 35 ...
Страница 322: ...ELECTRICAL COMPONENTS 8 36 EAS1SM9331 ELECTRICAL COMPONENTS EAS1SM9332 9 10 1 2 3 4 5 6 7 8 ...
Страница 324: ...ELECTRICAL COMPONENTS 8 38 EAS1SM9333 CHECKING THE SWITCHES Y W P Sb 1 2 P Sb Y W ...
Страница 325: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch ...
Страница 334: ...ELECTRICAL COMPONENTS 8 48 ...
Страница 342: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Страница 353: ......
Страница 354: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER ...