| Attribute | Specification |
|---|---|
| Model Designation | RC47A |
| Production Years | 1998 – 2005 |
| Engine Type | 647cc 52° V-Twin, SOHC, 3 Valves per Cylinder |
| Final Drive | Shaft Drive (Cardan) |
| Oil Type | 10W-40 (JASO MA2) |
| Oil Capacity | 2.5 Liters |
| Spark Plug | NGK DPR8EA-9 |
| Battery | YTX9-BS |
Engineering Highlight: The Integrated Pannier Philosophy
Unlike its predecessor, the NTV 650 Revere, the Deauville RC47A was engineered with a unique design priority: the integrated luggage system. While most motorcycles of the late 90s treated panniers as aftermarket bolt-ons, Honda engineers designed the RC47A’s rear subframe and bodywork specifically to house permanent storage. This resulted in a narrower profile for lane-splitting and significantly improved aerodynamic stability at touring speeds compared to bikes with detachable hard cases.
Technical Review: The Bulletproof V-Twin
At the heart of the RC47A is the liquid-cooled 52-degree V-twin engine, a powerplant derived from the legendary Transalp and Shadow lines. Its primary strength is not peak horsepower—producing a modest 56hp—but rather its linear torque delivery and exceptional longevity. The inclusion of a shaft drive makes it a favorite among high-mileage commuters and long-distance tourers who prioritize low-maintenance over raw performance.
Maintenance Guide
Lubrication and Fluids
The RC47A requires 2.5 liters of 10W-40 JASO MA2 compliant oil. Given its wet clutch system, ensuring the oil meets JASO MA2 standards is critical to prevent clutch slippage. Owners should also inspect the final drive gear oil every 12,000 miles, as the shaft drive is the bike’s strongest asset but requires clean lubrication to prevent bearing wear.
Tires and Handling
The Deauville uses a standard 17-inch wheel setup. For optimal stability under load, tire pressures should be strictly monitored:
- Front (120/70 ZR 17): 2.25 bar (33 psi) for solo riding, up to 2.50 bar (36 psi) with a passenger.
- Rear (150/70 ZR 17): 2.50 bar (36 psi) for solo riding, up to 2.90 bar (42 psi) for full touring loads.
Electrical System
The system relies on a YTX9-BS battery. A common technical oversight on the RC47A is the regulator/rectifier, which can overheat. It is recommended to ensure the cooling fins on the regulator are clear of road debris to maintain charging efficiency. The ignition system utilizes two NGK DPR8EA-9 spark plugs, which are easily accessible for routine maintenance.
Common Issues to Monitor
While the RC47A is famously reliable, long-term owners should watch for fuel pump failure (often preceded by intermittent cutting out) and the deterioration of the exhaust collector box, which is prone to corrosion in humid climates. Regular cleaning and the application of anti-corrosive treatments to the undercarriage will significantly extend the life of these components.
FAQ
Q: Is the Honda Deauville 650 suitable for highway touring?
A: Absolutely. While it lacks the power of a liter-bike, its fairing protection and shaft drive make it one of the most cost-effective long-distance machines in the mid-weight category.
Q: How often should I change the spark plugs?
A: Honda recommends inspection every 8,000 miles (12,000 km) and replacement every 16,000 miles (24,000 km) for the NGK DPR8EA-9 units.