Service Manual

PERIODIC MAINTENANCE 2-3
Torque and Locking Agent
The following tables list the tightening torque for the major fasteners and the parts requiring use of
a non-permanent locking agent or liquid gasket.
Letters used in the “Remarks” column mean:
EO: Apply oil to the threads.
L: Apply a non-permanent locking agent to the threads.
Lh: Left-hand threads.
S: Tighten the fasteners following the specified sequence.
Torque
Fastener
N·m kgf·m ft·lb
Remarks
Fuel System
Carburetor and Inlet Pipe Mounting Nuts 5.9 0.60 52 in·lb
Control Panel Mounting Bolt 5.9 0.60 52 in·lb
Governor Arm Clamp Nut 7.8 0.80 69 in·lb
Governor Arm Joint Bolt 5.9 0.60 52 in·lb Lh
Governor Shaft Plate Screws 2.0 0.20 18 in·lb
Inlet Manifold Bolts
5.9 0.60 52 in·lb
S
FX Models
Air Cleaner Bracket Mounting Bolts 5.9 0.60 52 in·lb
Air Cleaner Holder Bracket Bolts
5.9 0.60 52 in·lb
Carburetor and Inlet Pipe Mounting Bolts
5.9 0.60 52 in·lb
Choke Valve Screws 0.93 0.095 8.2 in·lb
Cover Plate Screw 2.4 0.24 21 in·lb
Drain Screw 2.0 0.20 18 in·lb
Float Chamber Mounting Screws 3.9 0.40 35 in·lb
Throttle Valve Screws 0.93 0.095 8.2 in·lb
FR and FS Models
Control Panel and Inlet Pipe Mounting Bolt 5.9 0.60 52 in·lb
Main Jet 2.3 0.23 20 in·lb
Solenoid Valve 4.5 0.46 40 in·lb
Throttle Valve Screws 0.68 0.069 6.0 in·lb L
FR651V, FR691V, FS651V, FS691V Models
Throttle Lever Mounting Screw 0.68 0.069 6.0 in·lb L
Cooling System
Cooling Fan Plate Mounting Bolts
8.8 0.90 78 in·lb
Cooling Fan Screen Bolts
5.9 0.60 52 in·lb
Flywheel Bolt 56 5.7 41
FX Models
Engine Shroud Bolts 5.9 0.60 52 in·lb
Fan Housing Bolts 5.9 0.60 52 in·lb
Guard Mounting Bolts 5.9 0.60 52 in·lb
FR and FS Models
Engine Shroud Bolts 8.8 0.90 78 in·lb
Fan Housing Bolts 8.8 0.90 78 in·lb
Engine Top End
Connecting Rod Big End Cap Bolts 9.8 1.0 87 in·lb EO
Cylinder Head Bolts (L = 50 mm) 46 4.7 34 S