CYLINDER AND PISTON
5-33
EAS1SM9228
CHECKING THE PISTON PIN
1. Check:
• Piston pin
Brown or silver discoloration/excessive
wear/pitting/scratches/grooves
Replace
the piston pin and then check the lubrication
system.
2. Measure:
• Piston pin outside diameter “a”
Out of specification
Replace the piston
pin.
3. Measure:
• Piston pin bore inside diameter “b”
Out of specification
Replace the piston.
EAS1SM9229
INSTALLING THE PISTON AND CYLINDER
1. Install:
• Oil ring expander “1”
• Lower oil ring rail “2”
• Upper oil ring rail “3”
• Top ring “4”
TIP
Be sure to install the piston ring so that the
manufacturer’s marks or numbers face up.
2. Install:
• Piston “1”
• Piston pin “2”
• Piston pin clip “3”
Piston ring
Top ring
End gap (installed)
0.15–0.25 mm (0.0059–0.0098 in)
Limit
0.50 mm (0.0197 in)
Oil ring
End gap (installed)
0.10–0.35 mm (0.0039–0.0138 in)
Piston pin outside diameter
15.991–16.000 mm (0.6296–
0.6299 in)
Limit
15.971 mm (0.6288 in)
Piston pin bore inside diameter
16.002–16.013 mm (0.6300–
0.6304 in)
Limit
16.043 mm (0.6316 in)
b
4
New
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 ...