Suzuki RM250 8

19-2 SERVICE DATA

SERVICE DATA

CYLINDER + PISTON + PISTON RING

ITEM		STD/SPEC.	LIMIT
Piston to cylinder clearance		0.045-0.055 mm (0.0018-0.0022 in)	0.120 mm (0.0047 in)
Cylinder borę		66.400 - 66.415 mm (2.6142-2.6148 in) Measure 20 mm (0.79 in) from the top surface	Nicks or scratches
Piston diam.		66.350 - 66.365 mm (2.6122-2.6128 in) Measure 25.5 mm (1.00 in) from the skirt end	66.280 mm (2.6100 in)
Cylinder distortion		—	0.05 mm (0.002 in)
Cylinder head distortion		—	0.05 mm (0.002 in)
Piston ring free end gap	1 st & 2nd	R Approx. 8.4 mm (0.33 in)	6.7 mm (0.26 in)
Piston ring end gap	1 st & 2nd	0.30 - 0.45 mm (0.012-0.018 in)	0.50 mm (0.02 in)
Piston ring to groove clearance	1 st & 2nd	0.020 - 0.060 mm \ ^v , (0.0008 - 0.0024 in) \	—
Piston pin borę		18.00Ź^-18:008 miU % (0.7087 - 0,7090 in). ^	18.030 mm (0.7098 in)
Piston pin O.D.		\17.99518.000 him \ v \ (0:7085 - 0.7087 in)	17.980 mm (0.7079 in)

\ W ^v\ \ \ r \ \ - •

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ITEM I (	-X \ X " STD/SPEC.	LIMIT
Conrod smali end I.D. V ..	) ; X 23.003-23.011 mm (0.9056-0.9059 in)	23.040 mm (0.9071 in)
Con rod deflection	—	3.0 mm (0.12 in)
Con rod big end side clearance	—	1.0 mm (0.04 in)
Crank web to web width	59.9 - 60.1 mm (2.358-2.366 in)	—
Crankshaft runout	—	0.05 mm (0.002 in)

CLUTCH

ITEM	STD/SPEC.	LIMIT
Clutch lever play	10-15 mm
	(0.40-0.60 in)
Drive piąte thickness	3.07 -3.23 mm	2.77 mm
	(0.121 - 0.127 in)	(0.109 in)
Drive piąte claw width	13.85 - 13.95 mm	13.05 mm
	(0.545-0.549 in)	(0.514 in)
Driven piąte distortion		0.15 mm
		(0.006 in)
Clutch spring free length	39.78 mm	37.8 mm
	(1.57 in)	(1.49 in)