1999 Honda CR80 Torque Specs
Shop parts for a 1999 Honda CR80 Dirt Bike.
The 1999 Honda CR80 continued with the proven liquid-cooled, power-valve two-stroke platform that had dominated the 80cc class for years. The ’99 CR80 featured updated graphics and minor specification adjustments, maintaining its position as one of the top choices for competitive junior riders. Torque specs are the core of any reliable service routine on this youth motocross machine.
Engine Specs
The 1999 CR80 uses the same core liquid-cooled 80cc two-stroke architecture as the surrounding model years. Power valve maintenance is critical—carbon buildup in the valve body restricts exhaust gas flow and flattens the powerband in the upper RPM range. Torquing the cover bolts correctly after cleaning keeps the valve seated properly.
| Fastener | Torque (ft-lb) | Torque (Nm) |
|---|---|---|
| Spark plug | 9–11 | 12–15 |
| Cylinder head bolts | 11–14 | 15–19 |
| Cylinder base bolts | 11–14 | 15–19 |
| Power valve cover bolts | 5–7 | 7–10 |
| Water pump cover bolts | 7–9 | 10–12 |
| Flywheel nut | 22–29 | 30–39 |
| Clutch hub nut | 22–29 | 30–39 |
Chassis & Suspension
| Fastener | Torque (ft-lb) | Torque (Nm) |
|---|---|---|
| Fork clamp bolts | 9–11 | 12–15 |
| Handlebar clamp bolts | 11–14 | 15–19 |
| Swingarm pivot nut | 36–43 | 49–59 |
| Rear shock mount bolts | 18–22 | 25–30 |
Wheel & Drivetrain Hardware
| Fastener | Torque (ft-lb) | Torque (Nm) |
|---|---|---|
| Front axle nut | 22–29 | 30–39 |
| Rear axle nut | 36–43 | 49–59 |
| Rear sprocket nuts | 18–22 | 25–30 |
| Chain adjuster lock nuts | 7–11 | 10–15 |
Brakes
| Fastener | Torque (ft-lb) | Torque (Nm) |
|---|---|---|
| Front brake plate bolt | 9–11 | 12–15 |
| Rear brake plate bolt | 9–11 | 12–15 |
The 1999 CR80 is a well-regarded late-production example of the standard CR80 format. Maintaining the bike with correct torque values preserves the original hardware and keeps the bike competitive for riders still racing it or using it for training.
Related Shopping Categories
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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.
