2008 Honda TRX400EX Torque Specs

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General Maintenance
Item QTY Thread Dia. (mm) Torque (lb-ft)
Spark Plug 1 12 13
Valve Adjusting Screw Lock Nut 4 7 18
Timing Hole Cap 1 14 7
Crankshaft Hole Cap 1 30 5.9
Valve Adjusting Hole Cap 4 36 11
Engine Oil Drain Bolt (Crankcase) 1 12 18
Cylinder Head / Cylinder / Piston
Item QTY Thread Dia. (mm) Torque (lb-ft)
Cylinder Head Cover Bolt 1 8 16
Rocker Arm Shaft 2 14 20
Intake Sub-Rocker Arm Shaft 2 14 20
Exhaust Sub-Rocker Arm Shaft 2 12 20
Cam Sprocket Bolt 2 7 15
Cam Chain Tensioner Lifter Plug 1 6 3.0
Cylinder Head Nut 4 10 32
Cylinder Bolt 4 10 32
Cylinder Stud Bolt 4 10 15
Clutch / Gearcase Linkage
Item QTY Thread Dia. (mm) Torque (lb-ft)
Primary Drive Gear Nut 1 18 65
Clutch Center Lock Nut 1 18 80
Gearshift Drum Stopper Arm Pivot Bolt 1 6 9
Gearshift Spindle Return Spring Pin 1 8 18
Alternator / Starter Clutch
Item QTY Thread Dia. (mm) Torque (lb-ft)
Flywheel Bolt 1 12 94
Starter Clutch Outer Bolt 6 8 22
Left Crankcase Cover Stud Bolt 1 6 7
Gearshift Pedal Pinch Bolt 1 6 14
Crankcase / Transmission
Item QTY Thread Dia. (mm) Torque (lb-ft)
Mainshaft Bearing Setting Plate Bolt 2 6 9
Frame / Body Panels / Exhaust System
Item QTY Thread Dia. (mm) Torque (lb-ft)
Footpeg Bracket Bolt 4 10 31
Skid Plate Bolt 4 8 22
Muffler Band Bolt 2 8 17
Muffler Mounting Bolt 2 8 24
Exhaust Pipe Protector Bolt 2 6 14
Exhaust Pipe Joint Nut 4 8 20
Rear Frame Upper Mounting Bolt 2 8 31
Rear Frame Lower Mounting Bolt 2 10 40
Maintenance
Item QTY Thread Dia. (mm) Torque (lb-ft)
Engine Oil Drain Bolt (Oil Tank) 1 10 15
Engine Oil Strainer Screen (Oil Tank) 1 27 40
Axle Bearing Holder Pinch Bolt 4 8 15
Front Master Cylinder Reservoir Cap Screw 2 4 1.1
Parking Brake Arm Lock Nut 1 8 13
Rear Master Cylinder Push Rod Lock Nut 1 8 13
Tie-Rod Lock Nut 4 12 40
Engine Removal / Installation
Item QTY Thread Dia. (mm) Torque (lb-ft)
Upper Engine Hanger Nut 1 10 55
Front Engine Hanger Nut 1 10 40
Front Engine Hanger Plate Bolt 4 8 19
Lower Engine Hanger Nut 1 10 55
Front Wheel / Suspension / Steering
Item QTY Thread Dia. (mm) Torque (lb-ft)
Handlebar Lower Holder Nut 2 10 29
Throttle Housing Cover Screw 3 4 2.9
Left Handlebar Switch Housing Screw 2 5 1.5
Front Wheel Nut / Lugnut 8 10 47
Front Axle Nut 2 14 51
Shock Absorber Mounting Nut 4 10 33
Upper and Lower Arm Ball Joint Nut 4 12 24
Upper and Lower Arm Pivot Nut 8 10 29
Tie-Rod Stud Joint Nut 4 10 33
Tie-Rod Ball Joint Lock Nut 4 12 40
Steering Shaft End Nut 1 14 51
Steering Shaft Holder Bolt 2 8 24
Front Brake Disc Bolt 6 8 31
Rear Wheel / Suspension
Item QTY Thread Dia. (mm) Torque (lb-ft)
Rear Wheel Nut / Lugnut 8 10 47
Final Driven Sprocket Nut 4 10 44
Rear Wheel Hub Nut 2 18 108
Rear Axle Lock Nut (Outside) 1 48 65
Rear Axle Lock Nut (Inside) 1 48 94
Rear Shock Absorber Upper and Lower Bolt 2 10 44
Shock Link-To-Swingarm Nut 1 10 33
Shock Arm-To-Frame Nut 1 10 43
Shock Arm-To-Shock Link Nut 1 10 43
Swingarm Pivot Nut 1 14 80
Caliper Stopper Pin 1 12 43
Brake System
Item QTY Thread Dia. (mm) Torque (lb-ft)
Front Brake Caliper Bracket Pin 1 8 13
Brake Hose Oil Bolt 5 10 25
Front Brake Caliper Mounting Bolt 2 8 22
Brake Pipe Joint Nut 2 10 12
Rear Master Cylinder Mounting Bolt 2 6 9
Rear Master Cylinder Reservoir Hose Joint Screw 1 4 1.4
Brake Lever Pivot Bolt 1 6 4.3
Brake Lever Pivot Nut 1 6 4.3
Front Brake Disc Mounting Bolt 6 8 31
Rear Caliper Bracket Bolt 2 8 22
Caliper Bleeder Valve 3 8 4.0
Front Caliper Slide Pin 2 8 17
Front Caliper Bracket Pin Bolt 2 8 13
Front Caliper Pad Pin 4 10 13
Front Caliper Pad Pin Plug 4 10 2.2
Rear Brake Pad Pin Bolt 2 8 13
Rear Caliper Slide Pin 1 8 17
Rear Caliper Bracket Pin Bolt 1 8 13
Rear Brake Caliper Mounting Bolt 2 8 22
Rear Brake Caliper Parking Brake Base Bolt 2 8 22