Specifications

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TIGHTENING TORQUE LIST
Engine
Tightening Point Part No. Part Name
Thread dia. ×
pitch
Tightening torque Nm (kgf•m) Q'ty Remarks
Cylinder head tightening 90176-10075 Nut M10 × 1,25
Turn-of-nut method: Retighten to
135±5 degrees after tightening to
42 (4.2).
2
Apply oil to thread and
seating surface.
Cylinder head tightening 90179-10006 Nut M10 × 1,25
Turn-of-nut method: Retighten to
135±5 degrees after tightening to
33 (3.3).
8
Apply oil to thread and
seating surface.
Cylinder head tightening 91317-06060
Bolt, hexagon socket
head
M6 × 1,0 12±2 (1,2±0,2) 2
Cap & cylinder head 90105-06026 Bolt, flange M6 × 1,0 10±2 (1,0±0,2) 28
Apply oil to thread and
seating surface.
Cylinder head cover tightening 90109-066F0 Bolt M6 × 1,0 12±2 (1,2±0,2) 6
AI cap 90110-06020
Bolt, hexagonal socket
head
M6 × 1,0 10±2 (1,0±0,2) 4
Sprocket & camshaft 90105-07342 Bolt, flange M7 × 1,0 24±2 (2,4±0,2) 4
Head & throttle body 90450-62001 Hose, clamp M5 × 0,8 3±0,5 (0,3±0,05) 4
Connecting rod 5VY-11654-00
Bolt, connecting rod big
end
M8 × 0,75
Turn-of-nut method: Retighten to
135±5 degrees after tightening to
20 (2.0).
8
Crank sprocket 90105-10290 Bolt, flange M10 × 1,25 60±5 (6,0±0,5) 1 Apply oil to thread.
Cam chain tensioner 91314-06020
Bolt, hexagonal socket
head
M6 × 1,0 10±2 (1,0±0,2) 2
Hose tightening 90450-38040 Hose, clamp assembly (Ref. 1.5 to 2.5 (0.15 to 0.25))
Hose tightening 90450-35001 Hose, clamp assembly (Ref. 1.5 to 2.5 (0.15 to 0.25))
Hose tightening 90450-25037 Hose, clamp assembly (Ref. 1.5 to 2.5 (0.15 to 0.25))
Pump driving sprocket installation 90105-06154 Bolt, flange M6 × 1,0 15±2 (1,5±0,2) 1 Degrease thread.
Pump installation 90110-06026 Bolt, flange M6 × 1,0 12±2 (1,2±0,2) 2
Thermostat assembly 90176-06065 Cap, nut M6 × 1,0 10±2 (1,0±0,2) 2
Oil cooler installation 5EB-12822-00 Bolt, union M20 × 1,5 63±3 (6,3±0,3) 1
Apply oil to thread and
seating surface.
Drain bolt installation 90340-14132 Plug M14 × 1,5 43±4 (4,3±0,4) 1
Installation of bolt union for cleaner 90401-20145 Bolt, union M20 × 1,5 70±5 (7,0±0,5) 1
Oil cleaner assembly installation 5GH-13440-00 Oil cleaner assembly M20 × 1,5 17±2 (1,7±0,2) 1 Apply grease to O-ring.
Strainer cover installation 91317-06025
Bolt, hexagonal socket
head
M6 × 1,0 12±2 (1,2±0,2) 14
Strainer cover installation 90110-06020
Bolt, hexagonal socket
head
M6 × 1,0 12±2 (1,2±0,2) 1
Carburetor joint & throttle body 90450-62001 Hose, clamp M5 × 0,8 3±0,5 (0,3±0,05) 4
Throttle body & funnel 1 90109-05005-1 Bolt M5 × 0,8 3,4 – 5,0 (0,34 – 0,5) 6
Ring nut & cylinder head 90179-08410 Nut M8 × 1,25 20±2 (2,0±0,2) 8
Studded into crankcase 90116-1002* Bolt, stud M10 × 1,25 8±1 (0,8±0,1) 10
Apply oil to thread and
seating surface.
Crankcase 1 & crankcase 2 90119-09003
Bolt, hexagonal with
washer
M9 × 1,25
Refer to "Crankcase installation"
section.
10
Apply oil to thread and
seating surface.
Crankcase 1 & crankcase 2 90109-06063 Bolt M6 × 1,0 12±2 (1,2±0,2) 2
Apply oil to thread and
seating surface.
Crankcase 1 & crankcase 2 95817-06
Bolt, flange M6 × 1,0 12±2 (1,2±0,2) 8
Apply oil to thread and
seating surface.
Crankcase 1 & crankcase 2 90105-08015 Bolt M8 × 1,25 24±2 (2,4±0,2) 1
Apply oil to thread and
seating surface.
Crankcase 1 & crankcase 2 95817-080
0 Bolt, flange M8 × 1,25 24±2 (2,4±0,2) 5
Apply oil to thread and
seating surface.