Buell P3 Blast Service Manual (2002)

Buell introduced the Blast for the 2000 model year as an unusually focused entry-level motorcycle. Rather than shrinking one of its existing sport models, Buell designed a simple single-cylinder machine around the needs of newer riders: low mass, easy low-speed control, modest power, inexpensive ownership and approachable ergonomics. Cycle World’s launch coverage described the project as an attempt to attract people who were not yet motorcyclists, with the bike also tied closely to Harley-Davidson’s Rider’s Edge training initiative. See Cycle World’s original Buell Blast road test.

The P3 Blast used a 492 cm³ air-cooled four-stroke single derived conceptually from Harley-Davidson’s pushrod V-twin architecture but redesigned extensively for the smaller motorcycle. Its 88.9 × 79.375 mm bore and stroke, 9.2:1 compression ratio, hydraulic self-adjusting lifters and 40 mm Keihin CV carburetor produced a factory-rated 30 hp at 6,500 rpm and 27 lb-ft at 3,200 rpm. The engine was paired with a five-speed gearbox and belt final drive, giving the Blast a mechanically simple, low-maintenance drivetrain suited to everyday riding and rider training.

Chassis design followed the same accessibility-first philosophy. The 2002 motorcycle used 16-inch wheels, a 1,404 mm wheelbase, 25-degree rake and 86 mm trail, with low- and high-seat configurations of approximately 648 mm and 698 mm. Factory wet weight was 172 kg, and fuel capacity was 10.6 litres. These proportions, together with a low center of gravity, light clutch action and generous steering lock, helped make the Blast an entry-level 492 cc single-cylinder motorcycle that emphasized confidence at parking-lot and urban speeds rather than outright performance.

The Blast’s engineering was deliberately cost-conscious without being merely a cut-down Sportster. Cycle World’s technical feature on the engine explained that Buell retained some Harley manufacturing concepts and dimensions while redesigning many components to reduce cost, weight and complexity. The 492 cc displacement was selected early to provide useful road performance without making the motorcycle intimidating, and the single-cylinder layout also made the machine inexpensive to service. By 2002 the basic formula was well established, with Buell refining details while preserving the same fundamental engine, chassis and training-oriented market role. See Cycle World’s technical history of the Blast engine.

This 2002 factory service publication covers the Blast P3 for model year 2002. Harley-Davidson’s official 2002 parts catalog identifies model code KP as Blast P3, engine codes 13/58 as the 492 cc World/California versions and model-year code 2 as 2002; related documents are grouped in the Buell P3 Blast catalog.