Yamaha XT660 2004, Service Manual

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SPEC
TIGHTENING TORQUE
TIGHTENING TORQUE
ENGINE TIGHTENING TORQUE
Part to be tightened Part name
Thread
size
Q’ty
Tightening torque
Remarks
Nm m · kg ft · lb
Cylinder head (exhaust pipe) Stud bolt M8 4 15 1.5 11
Cylinder head (left side)
= 145 mm (5.71 in)
Bolt M9 2 50 5.0 36
E
Cylinder head (right side)
= 135 mm (5.31 in)
Bolt M9 2 50 5.0 36
E
Cylinder head (center lower side) Bolt M9 2 45 4.5 32
E
Cylinder head Bolt M6 2 10 1.0 7.2
Spark plug — M10S 1 13 1.3 9.4
Cylinder (left side)
= 116 mm (4.57 in) 1st
Bolt M10 2 15 1.5 11
E
2nd 50 5.0 36
Cylinder (right side)
= 109 mm (4.29 in) 1st
Bolt M10 2 15 1.5 11
E
2nd 50 5.0 36
Cylinder Bolt M6 2 10 1.0 7.2
Tappet cover (exhaust side) Bolt M6 4 10 1.0 7.2
Tappet cover (intake side) Bolt M6 4 10 1.0 7.2
Camshaft sprocket cover Bolt M6 2 10 1.0 7.2
Camshaft sprocket Bolt M7 2 20 2.0 14
Camshaft retainer Bolt M6 2 10 1.0 7.2
LT
Valve adjusting screw Nut M6 4 14 1.4 10
Balancer driven gear Nut M18 1 70 7.0 50
Use a lock
washer.
Primary drive gear Nut M20 1 80 8.0 58
Use the lock
washer.
Timing chain tensioner Bolt M6 2 10 1.0 7.2
Timing chain tensioner cap Bolt M16 1 20 2.0 14
Timing chain guide (intake) Bolt M6 2 8 0.8 5.8
Thermostat cover Bolt M6 2 10 1.0 7.2
Coolant temperature sensor — M12 1 18 1.8 13
Water pump cover Bolt M6 3 10 1.0 7.2
Water pump assembly Bolt M6 2 10 1.0 7.2
Water pump outlet pipe Bolt M6 1 10 1.0 7.2
Water jacket joint Bolt M6 2 10 1.0 7.2
Crankcase cover (right) Bolt M6 9 10 1.0 7.2
E
M