ENGINE SPECIFICATIONS
2-4
Valve spring
Free length (intake)
36.69 mm (1.44 in)
Limit
34.85 mm (1.37 in)
Free length (exhaust)
34.86 mm (1.37 in)
Limit
33.11 mm (1.30 in)
Installed length (intake)
31.40 mm (1.24 in)
Installed length (exhaust)
28.50 mm (1.12 in)
Spring rate K1 (intake)
29.65 N/mm (3.02 kgf/mm, 169.30 lbf/in)
Spring rate K2 (intake)
39.31 N/mm (4.01 kgf/mm, 224.46 lbf/in)
Spring rate K1 (exhaust)
23.11 N/mm (2.36 kgf/mm, 131.96 lbf/in)
Spring rate K2 (exhaust)
30.88 N/mm (3.15 kgf/mm, 176.32 lbf/in)
Installed compression spring force (intake)
146.00–168.00 N (14.89–17.13 kgf,
32.82–37.77 lbf)
Installed compression spring force (exhaust)
137.00–157.00 N (13.97–16.01 kgf,
30.80–35.29 lbf)
Spring tilt (intake)
2.5 °/1.6 mm (2.5 °/0.06 in)
Spring tilt (exhaust)
2.5 °/1.5 mm (2.5 °/0.06 in)
Winding direction (intake)
Clockwise
Winding direction (exhaust)
Clockwise
Cylinder
Bore
77.000–77.010 mm (3.0315–3.0319 in)
Taper limit
0.050 mm (0.0020 in)
Out of round limit
0.050 mm (0.0020 in)
Piston
Piston-to-cylinder clearance
0.030–0.055 mm (0.0012–0.0022 in)
Limit
0.15 mm (0.006 in)
Diameter
76.955–76.970 mm (3.0297–3.0303 in)
Measuring point (from piston skirt bottom)
6.0 mm (0.24 in)
Offset
0.00 mm (0.0000 in)
Piston pin bore inside diameter
16.002–16.013 mm (0.6300–0.6304 in)
Limit
16.043 mm (0.6316 in)
Piston pin outside diameter
15.991–16.000 mm (0.6296–0.6299 in)
Limit
15.971 mm (0.6288 in)
Piston ring
Top ring
Ring type
Barrel
Dimensions (B
T)
0.90
2.70 mm (0.04
0.11 in)
End gap (installed)
0.15–0.25 mm (0.0059–0.0098 in)
Limit
0.50 mm (0.0197 in)
Ring side clearance
0.030–0.065 mm (0.0012–0.0026 in)
Limit
0.115 mm (0.0045 in)
Oil ring
Dimensions (B
T)
1.50
2.25 mm (0.06
0.89 in)
End gap (installed)
0.10–0.35 mm (0.0039–0.0138 in)
Crankshaft
Crank assembly width
55.95–56.00 mm (2.203–2.205 in)
Runout limit
0.030 mm (0.0012 in)
Big end side clearance
0.150–0.450 mm (0.0059–0.0177 in)
Balancer
Balancer drive method
Gear
Содержание WR250F 2017
Страница 4: ......
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Страница 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR...
Страница 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF...
Страница 41: ...MULTI FUNCTION DISPLAY 1 27...
Страница 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Страница 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Страница 81: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Exhaust camshaft 2 Intake camshaft 3 Oil filter element 4 Oil pump...
Страница 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Страница 83: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Camshaft 2 Oil pressure check bolt 3 Oil filter element 4 Oil pump...
Страница 84: ...CABLE ROUTING DIAGRAM 2 31 EAS2GBB073 CABLE ROUTING DIAGRAM...
Страница 86: ...CABLE ROUTING DIAGRAM 2 33...
Страница 88: ...CABLE ROUTING DIAGRAM 2 35...
Страница 90: ...CABLE ROUTING DIAGRAM 2 37...
Страница 92: ...CABLE ROUTING DIAGRAM 2 39...
Страница 94: ...CABLE ROUTING DIAGRAM 2 41...
Страница 96: ...CABLE ROUTING DIAGRAM 2 43...
Страница 98: ...CABLE ROUTING DIAGRAM 2 45...
Страница 152: ...CHASSIS 4 9...
Страница 162: ...FRONT WHEEL 5 8 1 1...
Страница 226: ...CHAIN DRIVE 5 72...
Страница 248: ...CAMSHAFT 6 19 6 Install Cylinder head breather hose Spark plug Spark plug 13 Nm 1 3m kgf 9 4 ft lbf T R...
Страница 270: ...ELECTRIC STARTER 6 41...
Страница 294: ...OIL PUMP AND BALANCER GEAR 6 65 a 2 10 b 2 9 1 b 5 3 a 4 10 5 9 3 E c d 6 7 8 8 b 6...
Страница 300: ...GENERATOR AND STARTER CLUTCH 6 71 1 a 3 3 2 4...
Страница 351: ...CHARGING SYSTEM 9 15...
Страница 355: ...LIGHTING SYSTEM 9 19...
Страница 363: ...COOLING SYSTEM 9 27...
Страница 395: ...FUEL PUMP SYSTEM 9 59...
Страница 396: ...ELECTRICAL COMPONENTS 9 60 EAS2GBB381 ELECTRICAL COMPONENTS EAS2GBB382 9 10 11 1 3 2 4 5 6 7 8...
Страница 398: ...ELECTRICAL COMPONENTS 9 62 12 11 10 2 3 1 6 7 4 5 8 9...
Страница 400: ...ELECTRICAL COMPONENTS 9 64 EAS2GBB383 CHECKING THE SWITCHES 4 1 3 2 B B Sb B B B B B B B B...
Страница 401: ...ELECTRICAL COMPONENTS 9 65 1 Engine stop switch 2 Neutral switch 3 Clutch switch 4 Start switch...
Страница 418: ...ELECTRICAL COMPONENTS 9 82...
Страница 429: ......
Страница 430: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER...