2001 Buell P3 Service Manual OEM (P/N 99491-01Y)

• Covers the 2001 Buell Blast P3 across maintenance, chassis, engine, fuel system, electric starter, drive/transmission, and electrical systems.
• 394-page PDF of the 2001 Buell P3 Service Manual, identified in the publication as P/N 99491-01Y.
• The VIN section decodes the 17-digit vehicle number and engine identification, showing sequential-number ranges 500001–520000 (World) and 520001–525000 (California) for the 2001 P3.
• Appendix B includes six model-specific electrical sheets covering the main harness, starting, charging, horn/instruments, lighting, and ignition circuits, plus Deutsch and Amp Multilock connector service information.

Manual Documentation Overview

This manual goes well beyond scheduled maintenance. It covers front and rear wheel service, sealed wheel bearings, brake master cylinders and calipers, front fork and steering-head work, swingarm and isolators, engine removal and installation, cylinder-head and piston repair, oil pump and hydraulic lifters, gearcase/cam gears, crankcase work, carburetor service, starter overhaul, clutch and primary drive repair, full transmission disassembly/assembly, and electrical fault finding.

The engine is the 492 cc single-cylinder, air-cooled four-stroke with a 9.2:1 compression ratio, 40 mm Keihin CV carburetor, 30 hp at 6500 rpm, and 27 ft-lb at 3200 rpm. Valve operation uses hydraulic self-adjusting lifters rather than a periodic valve-lash adjustment; the engine section instead gives valve-to-guide fits, spring specifications, piston/cylinder limits, rocker-arm clearances, lifter limits, oil-pump limits, cam-gear selection data, and crankshaft/flywheel measurements.

The manual also separates California and 49-state fuel-system hardware. California machines use the EVAP system with rollover valve, charcoal canister, purge plumbing, and dedicated hose routing; the 49-state configuration omits the charcoal canister and vents differently. The electrical chapter flags the bank-angle sensor as a 2001 model-year change, states that all 2001 Blast P3 models are equipped with it, and specifies ignition shutoff beyond a 55-degree lean angle.

Technical Specification Highlights

Workshop data is given at the point of use as well as in specification and torque tables. Useful examples include the 1.0 qt (0.95 L) transmission/primary capacity, 9.2 oz (272 ml) front-fork wet capacity per leg, 0.002 in. (0.051 mm) sealed-wheel-bearing end-play service limit, 0.18 in. (4.5 mm) minimum brake-rotor thickness, and 0.5 in. (12.7 mm) maximum drive-belt deflection under the manual's specified test load. Engine diagnostics include a 120 psi minimum compression benchmark and a 12% leakdown threshold for further attention. The schedule starts with the 1,000-mile (1,600 km) initial service; normal oil/filter changes are then called for every 5,000 miles, primary-chain adjustment every 2,500 miles, brake fluid every two years, and front-fork oil every 20,000 miles.

Electrical specifications are equally concrete: alternator output is listed at 19–26 VAC per 1000 engine rpm, regulator output at 14.3–14.7 VDC at 75°F, and ignition-coil resistance at 0.4–0.6 ohm primary and 7,720–9,440 ohms secondary. Starter bench data includes 3000 rpm minimum free speed at 11.5 V and 90 A maximum free current.

Repair and Diagnostic Coverage

Factory procedures include engine removal/reinstallation, cylinder-head and valve-guide/seat work, cylinder and piston service, oil-pump repair, cam-gear and crankcase bearing work, front-fork service, wheel-bearing replacement, brake master-cylinder and caliper rebuilding/bleeding, clutch-pack repair, transmission removal and overhaul, main-drive-gear and transmission-bearing service, shifter-pawl adjustment, starter bench testing, ignition timing, and throttle-position-sensor calibration. TPS calibration is specified at 0.50 ± 0.02 V closed throttle, with wide-open-throttle output not to exceed 3.7 V, using the HD-42962 harness adaptor and breakout box.

Troubleshooting is not limited to symptom lists. The manual provides diagnostic charts for no-spark and drivability problems, starter activation/interlock faults, charging-system output, and electronic speedometer faults, with connector IDs and test points tied back to the wiring documentation.

Several repair cautions are specific to the P3. The engine must not be laid on its primary side after removal because the clutch-cable end fitting can be damaged. Repeated removal of the front isolator mount can damage the cylinder-head threads because that mount is treated as an integral component. In the primary drive, the mainshaft washer must be installed with its “out” marking facing the mainshaft nut or transmission damage can result.

Diagrams, Wiring, and Specialist Tools

Representative named illustrations include Gearcase Cover & Cam Assembly, Carburetor Assembly, Starter Assembly, Transmission Power Flow, 2001 Buell Blast P3 Model – Main Harness, and 2001 Buell Blast P3 Model – Charging. Appendix A identifies specialist equipment such as the B-43985 Transmission Remover/Installer, B-43933 Wheel Bearing Remover/Installer, HD-38515-A Clutch Spring Compressing Tool, HD-35667A Cylinder Leakdown Tester, and HD-39965 Deutsch Terminal Crimp Tool.

Scope is clearly defined. Pre-delivery operations are directed to a separate model-year Predelivery and Setup Manual, so this publication should not be purchased as a substitute for that setup book. It also treats some assemblies as replacement rather than rebuild items, including the rear shock absorber, starter relay, and integrated ignition module.

Motorcycle repair on the P3 involves gasoline and EVAP vapors, DOT 4 hydraulic brakes, high-current starter circuits, and lifting/supporting the engine and chassis. Follow the safety warnings, electrical isolation requirements, and torque specifications in the manual before carrying out repair work.