KTM 300 1998 - Page 52

8
5
Piston fitting clearance 0.05 mm (250) 0.06 mm (300) 0.08 mm (380) Piston ring end gap 0.3–0.4 mm Connecting rod bearing - radial clearance 0.021–0.032 mm Transmission shafts end float 0.1–0.2 mm Clutch springs - length Ø 2.5 new = 43 mm, minimum length = 42 mm 8.2 TOLERANCES AND FITTING CLEARANCES
8.4 GASKET THICKNESSES
8.3 TIGHTENING TORQUES
Flange bolts - cylinder-head M 8 35 Nm (25 ft.lb) Nuts-cylinder base M 10 35 Nm (25 ft.lb) Flywheel collar nut M 12x1 60 Nm (45 ft.lb) Nut for primary sprocket (LH thread) M 18x1.5 150 Nm (110 ft.lb) Nut for inner clutch hub M 18x1.5 100 Nm (75 ft.lb) Crankcase and cover bolts M 6 8 Nm (6 ft.lb) Swingarm pivot M 14 100 Nm (103 ft.lb) Collar nut rear wheel spindle M 20x1.5 80 Nm (60 ft.lb) Other screws M 6 10 Nm (8 ft.lb)
M 8 30 Nm (22 ft.lb) M 10 50 Nm (37 ft.lb)
Crankcase 0.5 mm Clutch cover 0.5 mm Cylinder bottom gasket as required Available cylinder bottom gaskets 0.2/0.4/0.5/0.7 mm Cylinder-head gasket O-rings
TABLE 3
8.5 BASIC CARBURETOR SETTING
Carburetor Carburetor setting number Main jet Idling jet Starting jet Jetneedle Needle position from top Throttle valve Air adjustment screw open
380 SX/MXC/EXC
USA
250 SX/MXC/EXC USA
300 MXC/EXC USA
Keihin PWK 38
240496
175 (170/180)
45 (42/48)
85
N85C (N85D)
III
6
1,5
Keihin PWK 38
200597
175 (165/170/180)
45 (42/48)
85
NOZG (NOZH)
III
6
1,5