Torque Specs for the 2013 Honda CRF80F

Shop parts for a 2013 Honda CRF80F Dirt Bike.

The 2013 Honda CRF80F is the final model year of this platform—Honda retired the CRF80F after 2013. If you're maintaining one of these final-year bikes, the torque specifications are unchanged from earlier in the lineup. The 80cc air-cooled four-stroke and four-speed manual clutch remain proven, and keeping the hardware properly torqued ensures this last-year model stays reliable for years to come.

Wheels & Chain Drive

With the four-speed manual transmission and chain drive, the 2013 CRF80F places real loads on the drivetrain fasteners. The rear axle nut is torqued higher than the front and must be re-torqued after every chain adjustment.

FastenerTorque (ft-lb)Torque (Nm)
Front axle nut22–2630–35
Rear axle nut36–4449–59
Rear sprocket nuts18–2225–29
Chain adjuster lock nuts11–1315–18

Engine Torque Values

The OHC 80cc engine in the 2013 CRF80F benefits from consistent torque at the cylinder head. The rocker cover is frequently removed for valve clearance checks—re-torquing it properly every time prevents the small gasket from leaking.

FastenerTorque (ft-lb)Torque (Nm)
Spark plug11–1415–19
Oil drain bolt11–1415–19
Cylinder head bolts16–1822–25
Cylinder base bolts7–910–12
Rocker cover bolts4–55–7

Chassis & Suspension

Annual torque checks on the swingarm pivot and rear shock hardware are a good practice on any CRF80F, including the 2013 model. A loose pivot worsens under extended use if not addressed, eventually creating play that affects handling and chain alignment.

FastenerTorque (ft-lb)Torque (Nm)
Fork clamp bolts11–1315–18
Handlebar clamp bolts11–1315–18
Swingarm pivot bolt36–4349–59
Rear shock upper bolt22–2630–35
Rear shock lower bolt22–2630–35

Torque Wrench Guidance

A 3/8-inch drive torque wrench suits the heavier fasteners on the 2013 CRF80F, while a 1/4-inch drive handles the lighter engine hardware accurately. Torque all fasteners dry by default. Apply medium-strength thread locker to sprocket hardware and shock mount bolts as insurance against vibration-driven loosening on a final-year model that deserves to be kept in top condition.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.