PERIODIC MAINTENANCE 2-5 Torque and Locking Agent Tighten all bolts and nuts to the proper torque using an accurate torque wrench. If insufficiently tightened, a bolt or nut may become damaged, strip an internal thread, or break and then fall out. The following table lists the tightening toque for the major bolts and nuts, and the parts requiring use of a non-permanent locking agent or liquid gasket. When checking the tightening toque of the bolts and nuts, first loosen the bolt or nut by half a turn and then tighten to specified torque. Letters used in the "Remarks" column mean: AL: Tighten the two clamp bolts alternately two times to ensure even tightening torque. G: Apply grease. L: Apply a non-permanent locking agent to the threads. Lh: Left-hand Threads MO: Apply molybdenum disulfide oil (mixture of engine oil and molybdenum disulfide grease with a weight ratio 10 : 1). S: Tighten the fasteners following the specified sequence. St: Stake the fasteners to prevent loosening.
Basic Torque for General Fasteners Threads dia. (mm) 5 6 8 10 12 14 16 18 20
Torque kgf·m 0.35 ∼ 0.50 0.60 ∼ 0.80 1.4 ∼ 1.9 2.6 ∼ 3.5 4.5 ∼ 6.2 7.4 ∼ 10.0 11.5 ∼ 16.0 17.0 ∼ 23.0 23 ∼ 33
N·m 3.4 ∼ 4.9 5.9 ∼ 7.8 14 ∼ 19 25 ∼ 34 44 ∼ 61 73 ∼ 98 115 ∼ 155 165 ∼ 225 225 ∼ 325
Fastener Fuel System Air Cleaner Element Wing Bolt Throttle Pulley Cover Bolt Throttle Cable Bolts Hot Starter Plunger Cap Bolt Air Cleaner Duct Bolt and Nuts Rear Frame Mounting Bolts Air Cleaner Housing Bolts Air Cleaner Duct Clamp Screws Carburetor Holder Clamp Screws Fuel Tap Plate Mounting Screws Cooling System Right Engine Cover Bolt Water Pipe Bolt Water Pump Cover Bolts Water Pump Cover Bolts (with washer) Water Pump Impeller Bolt
N·m
Torque kgf·m
ft·lb 30 ∼ 43 in·lb 52 ∼ 69 in·lb 10.0 ∼ 13.5 19.0 ∼ 25 33 ∼ 45 54 ∼ 72 83 ∼ 115 125 ∼ 165 165 ∼ 240
ft·lb
– 3.4 7.0 1.0 3.0 34 9.8 3.0 2.0 0.8
– 0.35 0.7 0.1 0.3 3.5 1.0 0.3 0.2 0.08
– 30 in·lb 61 in·lb 10 in·lb 27 in·lb 25 87 in·lb 27 in·lb 17 in·lb 7 in·lb
9.8 9.8 9.8 9.8 7.0
1.0 1.0 1.0 1.0 0.7
87 87 87 87 61
in·lb in·lb in·lb in·lb in·lb
Remarks
Hand Tighten
L (1) L (1)