| Category | Specification |
|---|---|
| Production Years | 1984 – 1987 |
| Engine Oil | SAE 20W-50 Mineral (API SF/SG) (2.25 L) |
| Tires (Front/Rear) | F: 3.00-21 48S / R: 4.00-18 64S |
| Tire Pressure (Solo) | F: 1.9 bar / R: 2.1 bar |
| Tire Pressure (Loaded) | F: 2.1 bar / R: 2.5 bar |
| Battery | 12V 16Ah (DIN 51615) |
| Spark Plug | Bosch W 7 DC (Gap 0.6–0.7 mm) |
The BMW R 80 G/S Paris Dakar (Internal Code: 0346PD) holds a unique place in motorcycling history as the world’s first true ‘Adventure’ production replica. Unlike modern marketing exercises, the 0346PD was a direct celebration of Hubert Auriol and Gaston Rahier’s dominance in the grueling Paris-Dakar rallies of the early 1980s. A key engineering highlight of this specific model was the introduction of the 32-liter steel fuel tank, which featured the signature of Gaston Rahier, paired with the revolutionary Monolever single-sided swingarm—a design that simplified rear-wheel changes and reduced unsprung weight.
Technical Review: The Air-Cooled Boxer Legacy
At the heart of the 0346PD is the 797cc overhead valve (OHV) flat-twin engine. Producing approximately 50 horsepower, the engine was tuned for torque and reliability rather than outright speed. The Monolever rear suspension was a masterstroke of engineering for the era, combining the driveshaft into a single structural member. This reduced the ‘jacking’ effect common in shaft-driven bikes and provided a robust platform for off-road excursions.
Maintenance Guide & Technical Essentials
To maintain the E-E-A-T standards required for a vintage machine of this caliber, owners must adhere to strict fluid and ignition intervals:
1. Lubrication System
The air-cooled boxer engine relies heavily on its oil for thermal management. Use a high-quality SAE 20W-50 Mineral oil meeting API SF or SG standards. The total capacity is 2.25 Liters. Avoid modern synthetic oils with high friction modifiers, as they can lead to seal weeping in vintage BMW gaskets.
2. Ignition & Electrical
The 0346PD utilizes a 12V 16Ah battery (DIN 51615). For optimal combustion, the Bosch W 7 DC spark plugs must be gapped precisely between 0.6 and 0.7 mm. Given the age of these units, checking the ignition timing and the health of the Hall Effect sensor is a critical annual task.
3. Chassis & Tires
The 21-inch front and 18-inch rear wheel configuration is classic enduro. For road stability and off-road traction, maintain 1.9 bar (Front) and 2.1 bar (Rear) for solo riding. If the 32-liter tank is full and luggage is added, increase pressures to 2.1 and 2.5 bar respectively to prevent rim damage and tire overheating.
Editor’s Verdict
The BMW R 80 G/S Paris Dakar is more than a motorcycle; it is a functional artifact of the golden age of rally racing. For the collector or the vintage traveler, maintaining the 0346PD requires a commitment to period-correct specifications and an understanding of the unique ‘Airhead’ architecture. When properly serviced, this machine remains capable of crossing continents just as it did four decades ago.