Yamaha WR45OFR service manual Usa Cdn, Aus, Nz

MAINTENANCE SPECIFICATIONS

SPEC

Item		Standard		Limit
Clutch:
Friction plate thickness		2.92 ~ 3.08 mm		2.8 mm
		(0.115 ~ 0.121 in)		(0.110 in)
Quantity		9		----
Clutch plate thickness		1.1 ~ 1.3 mm (0.043 ~ 0.051 in)		----
Quantity		8		----
Warp limit		----		0.1 mm
				(0.004 in)
Clutch spring free length		48.4 mm (1.91 in)		47.4 mm
				(1.87 in)
Quantity		6		----
Clutch housing thrust clearance		0.10 ~ 0.35 mm		----
		(0.0039 ~ 0.0138 in)
Clutch housing radial clearance		0.010 ~ 0.044 mm		----
		(0.0004 ~ 0.0017 in)
Clutch release method		Inner push, cam push		----
Shifter:
Shifter type		Cam drum and guide bar		----
Guide bar bending limit		----		0.05 mm
				(0.002 in)
Kickstarter:
Type		Ratchet type		----
Carburetor:			EUROPE,
		USA	CDN, AUS, NZ,
			ZA
I. D. mark				----
		5TJ1 00	5TJ2 10
Main jet	(M.J)	#150	#160	----
Main air jet	(M.A.J)	ø2.0	←	----
Jet needle - clip position	(J.N)	OBDUT-4	OBDUQ-4	----
Cutaway	(C.A)	1.5	←	----
Pilot jet	(P.J)	#45	#48	----
Pilot air jet	(P.A.J)	#70	#80	----
Pilot outlet	(P.O)	ø0.9	←	----
Pilot screw (example)	(P.S)	1-3/4	1-1/2	----
Bypass	(B.P)	ø1.0	←	----
Valve seat size	(V.S)	ø3.8	←	----
Starter jet	(G.S)	#65	←	----
Leak jet	(Acc.P)	#70	#50	----
Float height	(F.H)	8 mm (0.31 in)	←	----
Engine idle speed		1,700 ~	←	----
		1,900 r/min
Intake vacuum		33.3 ~ 38.7 kPa	←	----
		(250 ~ 290 mmHg,
		9.84 ~ 11.42 inHg)
Hot starter lever free play		3 ~ 6 mm	←	----
		(0.12 ~ 0.24 in)

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