ENGINE SPECIFICATIONS
2-4
Valve face width B (intake)
1.697 mm (0.0668 in)
Valve face width B (exhaust)
1.909 mm (0.0752 in)
Valve seat width C (intake)
0.90–1.10 mm (0.0354–0.0433 in)
Valve seat width C (exhaust)
0.90–1.10 mm (0.0354–0.0433 in)
Valve margin thickness D (intake)
1.20 mm (0.0472 in)
Valve margin thickness D (exhaust)
0.85 mm (0.0335 in)
Valve stem diameter (intake)
4.975–4.990 mm (0.1959–0.1965 in)
Limit
4.945 mm (0.1947 in)
Valve stem diameter (exhaust)
4.460–4.475 mm (0.1756–0.1762 in)
Limit
4.430 mm (0.1744 in)
Valve guide inside diameter (intake)
5.000–5.012 mm (0.1969–0.1973 in)
Limit
5.050 mm (0.1988 in)
Valve guide inside diameter (exhaust)
4.500–4.512 mm (0.1772–0.1776 in)
Limit
4.550 mm (0.1791 in)
Valve-stem-to-valve-guide clearance (intake)
0.010–0.037 mm (0.0004–0.0015 in)
Limit
0.080 mm (0.0032 in)
Valve-stem-to-valve-guide clearance (exhaust)
0.025–0.052 mm (0.0010–0.0020 in)
Limit
0.100 mm (0.0039 in)
Valve stem runout
0.010 mm (0.0004 in)
Valve spring
Free length (intake)
36.69 mm (1.44 in)
Limit
35.69 mm (1.41 in)
Free length (exhaust)
34.86 mm (1.37 in)
Limit
33.86 mm (1.33 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)
B
C
D
Содержание YZ 2015 Series
Страница 6: ...EASB291006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Страница 10: ......
Страница 33: ...CONTROL FUNCTIONS 1 21 a 2...
Страница 65: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22 EASB291066...
Страница 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Страница 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Exhaust camshaft 2 Intake camshaft 3 Oil filter element 4 Oil pump...
Страница 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Страница 73: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Camshaft 2 Oil pressure check bolt 3 Oil filter element 4 Oil pump...
Страница 74: ...CABLE ROUTING DIAGRAM 2 31 EASB291068 CABLE ROUTING DIAGRAM...
Страница 76: ...CABLE ROUTING DIAGRAM 2 33...
Страница 78: ...CABLE ROUTING DIAGRAM 2 35...
Страница 80: ...CABLE ROUTING DIAGRAM 2 37...
Страница 82: ...CABLE ROUTING DIAGRAM 2 39...
Страница 84: ...CABLE ROUTING DIAGRAM 2 41...
Страница 86: ...CABLE ROUTING DIAGRAM 2 43...
Страница 88: ...CABLE ROUTING DIAGRAM 2 45...
Страница 128: ...ELECTRICAL SYSTEM 3 38...
Страница 200: ...CHAIN DRIVE 4 70...
Страница 244: ...ELECTRIC STARTER 5 41...
Страница 266: ...OIL PUMP AND BALANCER GEAR 5 63 c d 6 6 7 8 8 b...
Страница 286: ...TRANSMISSION 5 83...
Страница 306: ...CHECKING THE INTAKE AIR TEMPERATURE SENSOR 8 67 CHECKING THE FUEL INJECTOR 8 68...
Страница 319: ...CHARGING SYSTEM 8 13 4 AC magneto 5 Rectifier regulator 8 Battery 9 Frame ground 10 Starter relay 11 Main fuse...
Страница 321: ...CHARGING SYSTEM 8 15 EASB291338...
Страница 325: ...COOLING SYSTEM For JPN 8 19 EASB291341...
Страница 355: ...FUEL PUMP SYSTEM 8 49 EASB291348...
Страница 356: ...ELECTRICAL COMPONENTS 8 50 ELECTRICAL COMPONENTS EASB291349 8 9 10 1 3 2 4 5 6 7...
Страница 358: ...ELECTRICAL COMPONENTS 8 52 11 10 9 2 3 1 6 7 8 4 5...
Страница 360: ...ELECTRICAL COMPONENTS 8 54 EASB291350 CHECKING THE SWITCHES 4 1 3 2 E B S E B E B E E B B...
Страница 361: ...ELECTRICAL COMPONENTS 8 55 1 Engine stop switch 2 Neutral switch 3 Clutch switch 4 Start switch...
Страница 382: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7...