Yamaha WR45OFR service manual 7083 ~ 0.7087 7075

MAINTENANCE SPECIFICATIONS

SPEC

	Item		Standard	Limit
Valve spring:
Free length		IN	37.03 mm (1.46 in)	35.17 mm
				(1.38 in)
		EX	37.68 mm (1.48 in)	35.79 mm
				(1.41 in)
Set length (valve closed)		IN	27.87 mm (1.10 in)	----
		EX	27.38 mm (1.08 in)	----
Compressed force
(installed)		IN	111.3 ~ 127.9 N at 27.87 mm	----
			(11.3 ~ 13.0 kg at 27.87 mm,
			24.91 ~ 28.66 lb at 1.10 in)
		EX	127.4 ~ 146.4 N at 27.38 mm	----
			(13.0 ~ 14.9 kg at 27.38 mm,
Tilt limit *			28.66 ~ 32.85 lb at 1.08 in)
		IN	----	2.5˚/ 1.61 mm
				(2.5˚/0.063 in)
		EX	----	2.5˚/1.65 mm
				(2.5˚/0.065 in)

Direction of winding
(top view)	IN	Clockwise	----
	EX	Clockwise	----
Piston:
Piston to cylinder clearance		0.040 ~ 0.065 mm	0.1 mm
		(0.0016 ~ 0.0026 in)	(0.004 in)
Piston size “D”		94.945 ~ 94.960 mm	----
		(3.738 ~ 3.739 in)
	H

	D
Measuring point “H”		8 mm (0.315 in)	----
Piston off-set		1 mm (0.0394 in)	----
Piston pin bore inside diameter		18.004 ~ 18.015 mm	18.045 mm
		(0.7088 ~ 0.7093 in)	(0.7104 in)
Piston pin outside diameter		17.991 ~ 18.000 mm	17.971 mm
		(0.7083 ~ 0.7087 in)	(0.7075 in)

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