Yamaha WR45OFR service manual Oil strainer frame

MAINTENANCE SPECIFICATIONS

SPEC

Part to be tightened	Thread size		Q’ty	Tightening torque
				Nm	m·kg	ft·lb
Oil check bolt	M6	⋅ 1.0	1	10	1.0	7.2
Oil hose clamp		–	2	2	0.2	1.4
Clutch cover	M6	⋅ 1.0	7	10	1.0	7.2
Crankcase cover (right)	M6	⋅ 1.0	10	10	1.0	7.2
Crankcase cover (left)	M6	⋅ 1.0	9	10	1.0	7.2
Idle gear cover (starter motor)	M6	⋅ 1.0	2	10	1.0	7.2
Crankcase	M6	⋅ 1.0	12	12	1.2	8.7
Clutch cable holder	M6	⋅ 1.0	1	10	1.0	7.2
Oil drain bolt (crankcase rear)	M10	⋅ 1.25	1	20	2.0	14
(crankcase left)	M6	⋅ 1.0	1	10	1.0	7.2
Oil drain bolt (frame)	M8 ⋅ 1.25		1	23	2.3	17
Oil strainer (frame)	M18 ⋅ 1.5		1	90	9.0	65
Crankcase bearing stopper	M6	⋅ 1.0	15	10	1.0	7.2
Drive axle oil seal stopper	M6	⋅ 1.0	2	10	1.0	7.2
Ratchet wheel guide	M6	⋅ 1.0	2	12	1.2	8.7
Stopper plate	M6	⋅ 1.0	2	12	1.2	8.7
Kickstarter	M8 ⋅ 1.25		1	33	3.3	24
Screw (kickstarter)	M6	⋅ 1.0	1	7	0.7	5.1
Starter clutch	M6	⋅ 1.0	6	16	1.6	11
Primary drive gear	M20 ⋅ 1.0		1	75	7.5	54
Clutch boss	M20 ⋅ 1.0		1	75	7.5	54
Push lever	M6	⋅ 1.0	1	10	1.0	7.2
Clutch spring	M6	⋅ 1.0	6	8	0.8	5.8
Balancer driven gear	M14 ⋅ 1.0		1	50	5.0	36
Balancer weight plate	M6	⋅ 1.0	3	10	1.0	7.2
Drive sprocket	M20 ⋅ 1.0		1	75	7.5	54
Drive sprocket cover	M6	⋅ 1.0	2	8	0.8	5.8
Shift pedal	M6	⋅ 1.0	1	12	1.2	8.7
Shift guide	M6	⋅ 1.0	2	10	1.0	7.2
Stopper lever	M6	⋅ 1.0	1	10	1.0	7.2
Segment	M8 ⋅ 1.25		1	30	3.0	22

NOTE:

- marked portion shall be checked for torque tightening after break-in or before each race.

NOTE:

*1: Tighten the cylinder head bolts to 30 Nm (3.0 m · kg, 22 ft · lb) in the proper tightening sequence, remove and retighten the cylinder head bolts to 20 Nm (2.0 m · kg, 14 ft · lb) in the proper tightening sequence, and then tighten the cylinder head bolts further to reach the specified angle 180˚ in the proper tightening sequence.

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