250/300/380 sx,mxc,exc repair manual engine - Tanga Moteurs
250/300/380 sx,mxc,exc repair manual engine - Tanga Moteurs
250/300/380 sx,mxc,exc repair manual engine - Tanga Moteurs
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9-38C<br />
TIGHTENING TORQUES<br />
Flange bolts - cylinder-head M 8 35 Nm (25 ft.lb)<br />
Nuts-cylinder base M 10 35 Nm (25 ft.lb)<br />
Flywheel collar nut M 12x1 60 Nm (44 ft.lb)<br />
Flat head screw release plate kickstarter M 6x16 Loctite 648 19 Nm (14 ft.lb)<br />
Nut for primary sprocket (LH thread) M 18x1.5 Loctite 243 150 Nm (110 ft.lb)<br />
Nut for inner clutch hub M 18x1.5 Loctite 243 100 Nm (74 ft.lb)<br />
Crankcase and cover bolts M 6 8 Nm (6 ft.lb)<br />
Swingarm pivot M 14 100 Nm (74 ft.lb)<br />
Other screws M 6 10 Nm (7 ft.lb)<br />
M 8 25 Nm (19 ft.lb)<br />
M 10 45 Nm (33 ft.lb)<br />
TOLERANCES AND FITTING CLEARANCES<br />
Piston fitting clearance 0.06 mm (<strong>250</strong> / <strong>300</strong>)<br />
Piston ring end gap 0.3–0.4 mm<br />
Connecting rod bearing - radial clearance 0.021–0.032 mm<br />
Transmission shafts end float 0.1–0.2 mm<br />
Clutch springs - length Ø 2.5 minimum length = 42 mm, new = 43 mm<br />
Crankshaft webs – outer dimension 60 mm ± 0,05 mm<br />
Runout Crankshaft journal Crankshaft max 0,06 (neu 0,03)<br />
GASKET THICKNESSES<br />
Crankcase 0.5 mm<br />
Clutch cover 0.5 mm<br />
Cylinder bottom gasket as required<br />
Available cylinder bottom gaskets 0.2/0.4/0.5/0.75 mm<br />
Cylinder-head gasket O-rings<br />
BASIC CARBURETOR SETTING<br />
Carburetor<br />
Carburetor setting number<br />
Main jet<br />
Idling jet<br />
Starting jet<br />
Jet needle<br />
Needle position from top<br />
Slide<br />
Air adjustment screw open<br />
Performance restrictor<br />
Power jet nozzle<br />
<strong>250</strong>/<strong>300</strong> EXC<br />
throttled<br />
Keihin PWK 38 AG<br />
120202<br />
175 (182,185)<br />
35 (48)<br />
85<br />
R 1475 J<br />
(N3CH/N3CW)<br />
III<br />
6.5<br />
1.5<br />
slide stop 34mm<br />
<strong>250</strong> EXC USA<br />
Keihin PWK 38 AG<br />
140202<br />
182 (185)<br />
48<br />
85<br />
N3CH (N3CW)<br />
IV<br />
6.5<br />
1.5<br />
–<br />
–<br />
<strong>300</strong> EXC AUS<br />
throttled<br />
Keihin PWK 38 AG<br />
130202<br />
175 (172,178)<br />
35 (45,48)<br />
85<br />
R1475J (NOZ H/NOZ<br />
I)<br />
II<br />
6.5<br />
1.5<br />
slide stop 34mm<br />
<strong>300</strong> MXC / EXC<br />
USA<br />
Keihin PWK 38 AG<br />
150202<br />
175 (172,178)<br />
45 (48)<br />
85<br />
NOZ H (NOZ I)<br />
III<br />
6.5<br />
1.5<br />
–<br />
–