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MAINTENANCE SPECIFICATIONS
SPEC
2 - 12
Tightening torques
Part to be tightened
Part
name
Thread size Q’ty
Tightening torque
Remarks
Nm m·kg ft·lb
Cylinder head (oil gallery plug) Bolt M6 1 7 0.7 5.1
Cylinder head
Flange bolt
M8 4 22 2.2 16
E
Apply oil to the
washer
Cylinder head and Cylinder Bolt M8 2 22 2.2 16
Cam sprocket cover Screw M6 2 7 0.7 5.1
Tappet cover Bolt M6 5 10 1.0 7.2
Camshaft bushing retainer Bolt M6 2 8 0.8 5.8
Use lock washer
Spark plug — M12 1 17.5 1.75 12.5
Cylinder Bolt M6 2 10 1.0 7.2
Balancer drive gear Nut M14 × 1.0 1 50 5.0 36
Use lock washer
Starter pulley Bolt M10 × 1.25 1 50 5.0 36
Valve clearance adjusting locknut Nut M6 2 14 1.4 10
Cam sprocket Bolt M10 1 60 6.0 43
Chain tensioner Bolt M6 2 10 1.0 7.2
Chain tensioner cap Bolt M6 1 7 0.7 5.1
Chain guide (intake) Bolt M6 2 8 0.8 5.8
Oil pump Screw M6 3 7 0.7 5.1
Drain plug Plug M35 1 43 4.3 31
Oil filter cover (drain) Bolt M6 1 10 1.0 7.2
Oil filter cover Bolt M6 2 10 1.0 7.2
Carburetor joint and cylinder
head
Bolt M6 2 12 1.2 8.7
Tighten cable
guide together
Carburetor and carburetor
joint
Hose clamp
M4 1 2 0.2 1.4
Carburetor and joint hose
Hose clamp
M5 1 2 0.2 1.4
Air filter case and joint hose
Hose clamp
M5 1 2 0.2 1.4
Air filter case and air duct
Hose clamp
M5 1 2 0.2 1.4
Muffler Bolt M8 2 34 3.4 25
Muffler and exhaust pipe Bolt M8 1 20 2.0 14
Exhaust pipe Bolt M6 2 10 1.0 7.2
Crankcase Screw M6 11 7 0.7 5.1
Recoil starter Screw M6 6 7 0.7 5.1
Crankcase spacer (right) Screw M6 8 7 0.7 5.1
Crankcase cover
Bearing retainer (right) Screw M6 3 7 0.7 5.1
LT
(left) Screw M5 3 7 0.7 5.1
LT
Clutch cover protector Screw M6 3 7 0.7 5.1
Crankcase cover (right) Screw M6 9 7 0.7 5.1
Crankcase cover (left) Bolt M6 8 7 0.7 5.1
Clutch carrier assembly Screw M22 1 78 7.8 56
Use lock washer
Clutch spring Bolt M5 4 6 0.6 4.3
Clutch boss Nut M14 1 50 5.0 36
Use lock washer
Shift cam segment Screw M6 1 12 1.2 8.7
LT
2