Service manual

2-8
1
2
3
4
5
6
7
8
9
A
Specified tightening torque
Fuel system
Power unit
Part to tightened
Screw
size
Tightening torque See
pageN·mkgf·mft·lb
Fuel cock knob screw ø4 2 0.2 1.5 4-1
Fuel cock assy./washer nut — 50.53.74-1
Choke knob screw ø3 2 0.2 1.5 4-3
Choke knob nut — 20.21.54-3
Oil filler neck/rubber seal nut — 60.64.44-4
Oil filler hose clamp — 3.70.372.7 4-4
Fuel filler neck/rubber seal nut — 60.64.44-6
Fuel filler hose clamp — 3.70.372.7 4-6
Fuel level sensor assy. clamp 1 0.1 0.7 4-6
Carburetor cover 1 bolt M5 1 0.1 0.7 4-8
Flame arrester holder bolt M6 8 0.8 5.9 4-8
Throttle cable locknut — 80.85.94-8
Choke cable locknut — 80.85.94-8
Carburetor assy. nut — 18 1.8 13.3 4-8
Needle valve assy. plate screw ø3 1 0.1 0.7 4-11
Float arm screw ø3 1 0.1 0.7 4-11
Cover (carburetor 1) screw ø5 4.4 0.44 3.2 4-11
Cover (carburetor 2) screw ø5 3.4 0.34 2.5 4-11
Diaphragm cover screw ø5 3.4 0.34 2.5 4-11
Body assy. screw ø4 2 0.2 1.5 4-11
Main jet — 1.8 0.18 1.3 4-11
Pilot jet — 0.7 0.07 0.5 4-11
Air bleed screw ø6 5 0.5 3.7 4-17
Oil pump bolt M6 8 0.8 5.9 4-17
Part to tightened
Screw
size
Tightening torque See
pageN·mkgf·mft·lb
Coupling cover bolt M6 8 0.8 5.9 5-1
Engine mounting bolt M8 17 1.7 12.5 5-1
Engine mount bolt M8 17 1.7 12.5 5-3
Exhaust joint clamp — 50.53.75-10
Exhaust ring joint clamp — 20.21.55-10
Exhaust ring bolt M8 29 2.9 21.4 5-10
Muffler stay bolt
1st
M10
20.21.55-11
2nd 2 0.2 1.5 5-11
3rd 2 0.2 1.5 5-11
4th 39 3.9 28.8 5-11
5th 46 4.6 33.9 5-11
6th 39 3.9 28.8 5-11
Exhaust outer cover 1 M6 8 0.8 5.9 5-12
Exhaust outer cover 2 M6 8 0.8 5.9 5-12
Muffler bolt
1st
M10
21 2.1 15.5 5-13
2nd 39 3.9 28.8 5-13
Reed valve/valve stopper screw ø3 1 0.1 0.7 5-14
Electrical technical data / Specified tightening torque