VALVES AND VALVE SPRINGS
5-28
h. Install the valve into the cylinder head.
i. Press the valve through the valve guide and
onto the valve seat to make a clear impres-
sion.
j. Measure the valve seat contact width “c”
again. If the valve seat contact width is out of
specification, reface and lap the valve seat.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EASB296227
CHECKING THE VALVE SPRINGS
1. Measure:
• Valve spring free length “a”
Out of specification
Replace the valve
spring.
2. Measure:
• Compressed valve spring force “a”
Out of specification
Replace the valve
spring.
3. Measure:
• Valve spring tilt “a”
Out of specification
Replace the 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)
b. Installed length
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)
Installed length (intake)
31.40 mm (1.24 in)
Installed length (exhaust)
28.50 mm (1.12 in)
Spring tilt (intake)
1.6 mm (0.06 in)
Spring tilt (exhaust)
1.5 mm (0.06 in)
Содержание YZ 2016 Series
Страница 6: ...EASB296006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Страница 10: ......
Страница 31: ...CONTROL FUNCTIONS 1 19 a 2...
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 69: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Exhaust camshaft 2 Intake camshaft 3 Oil filter element 4 Oil pump...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Страница 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Camshaft 2 Oil pressure check bolt 3 Oil filter element 4 Oil pump...
Страница 72: ...CABLE ROUTING DIAGRAM 2 31 EASB296066 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 84: ...CABLE ROUTING DIAGRAM 2 43...
Страница 86: ...CABLE ROUTING DIAGRAM 2 45...
Страница 239: ...ELECTRIC STARTER 5 40 5 Install Bolt 1 O ring 2 TIP Apply the lithium soap based grease on the O ring New...
Страница 262: ...OIL PUMP AND BALANCER GEAR 5 63 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 282: ...TRANSMISSION 5 83...
Страница 302: ...8 CHECKING THE INTAKE AIR TEMPERATURE SENSOR 8 68 CHECKING THE FUEL INJECTOR 8 68...
Страница 317: ...CHARGING SYSTEM 8 15...
Страница 321: ...COOLING SYSTEM For JPN 8 19...
Страница 351: ...FUEL PUMP SYSTEM 8 49...
Страница 352: ...ELECTRICAL COMPONENTS 8 50 EASB296346 ELECTRICAL COMPONENTS EASB296347 7 8 9 1 3 2 4 5 6...
Страница 354: ...ELECTRICAL COMPONENTS 8 52 11 10 9 2 3 1 6 7 8 4 5...
Страница 356: ...ELECTRICAL COMPONENTS 8 54 EASB296348 CHECKING THE SWITCHES 4 1 3 2 B B Sb B B B B B B B B...
Страница 357: ...ELECTRICAL COMPONENTS 8 55 1 Engine stop switch 2 Neutral switch 3 Clutch switch 4 Start switch...
Страница 378: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7...
Страница 392: ...ON OFF ON OFF Gy Gy B B Gy B B B L L B B B B B YZ250FXG 2016 WIRING DIAGRAM B29 28199 11_W D indd 2 2015 06 15 13 19 32...