KTM EXC Repair Manual page 88

9-5C
TIGHTENING TORQUES
Flange bolts - cylinder-head
Nuts-cylinder base
Flywheel collar nut
Nut for primary sprocket (LH thread)
Nut for inner clutch hub
Crankcase and cover bolts
Swingarm pivot
Flat head bolt release plate kickstarter
Other bolts
TOLERANCES AND FITTING CLEARANCES
Piston fitting clearance
Piston ring end gap
Connecting rod bearing - radial clearance 0.021 – 0.032 mm
Transmission shafts end float
Clutch springs - length
GASKET THICKNESSES
Crankcase
Clutch cover
Cylinder bottom gasket
Available cylinder bottom gaskets
Cylinder-head gasket
BASIC CARBURETOR SETTING
Carburetor
Carburetor setting number
Main jet 172(168,170,175)
Idling jet
Starting jet
Jet needle NOZ G(NOZ H,NOZ I)
Needle position from top
Throttle valve
Air adjustment screw open
Performance restrictor
250 MXC, EXC
250 SX
300 MXC, EXC
Keihin PWK 38 Keihin PWK 38
090598 100598
175(170,172,178)
45(48,50) 45(42,48)
85 85
N85 C(N85 D)
II
6
1,5 1,5 Umdr.
–
M 8
M 10
M 12x1
M 18x1.5 Loctite 243 150 Nm
M 18x1.5 Loctite 243 100 Nm
M 6
M 14
M 6x16 Loctite 648 19 Nm
M 6
M 8
M 10
0.05 mm (250) 0.06 mm (300) 0.08 mm (380)
0.3 – 0.4 mm
0.1 – 0.2 mm
Ø 2.5 new = 43 mm, minimum length = 42 mm
0.5 mm
0.5 mm
as required
0.2/0.4/ 0.5 / 0.7 mm
O-rings
250/300 EGS
AUSTRALIA
Keihin PWK 38
100598
175(170,172,178)
45(42,48)
85
N85 C(N85 D)
III III
6 6
1,5 Umdr.
– slide stop 31mm
35 Nm (25 ft.lb)
35 Nm (25 ft.lb)
60 Nm (44 ft.lb)
(110 ft.lb)
(74 ft.lb)
8 Nm (6 ft.lb)
100 Nm (74 ft.lb)
(14 ft.lb)
10 Nm (7 ft.lb)
25 Nm (19 ft.lb)
45 Nm (33 ft.lb)
380 SX, MXC, EXC
AUSTRALIA
Keihin PWK 38 Keihin PWK 38
070598
170(168,172,175) 175(168,170,172)
48(45,50) 45(48,50)
85
NOZ H(NOZ G,NOZ I) NOZ G(NOZ H,NOZ I)
II
6
1,5 Umdr.
1,5 Umdr.
slide stop 36mm
–
380 EGS
060598
85
II
6