1992-1993 Yamaha WR200 / WR200R Official OEM Service Manual (P/N 4BF-000101)

• Covers 1992–1993 Yamaha WR200 and WR200R dual-sport models, specifically documenting the WR200R(D) variant.
• OEM publication 4BF-000101, detailing exact factory chassis and engine configurations.
• Includes 47 exploded-view component diagrams, full electrical wiring schematics, and complete torque-check tables.
• Instant PDF download straight to your device immediately after checkout.
• Indexed and fully searchable—quickly jump to specific torque specs or electrical values on your phone or shop tablet.
• Print only the pages you need for the shop floor, keeping your master file grease-free.

Engine and Drivetrain Specifications

This factory manual outlines the exact clearances and wear limits required to maintain the 4BF-series 199.7 cc liquid-cooled 2-stroke engine and 6-speed constant-mesh transmission. You get detailed inspection overviews for the cylinder head, piston assemblies, and reed valves, along with factory tuning data for the MIKUNI TM30SS carburetor. The electrical section maps out the ignition system, magneto charging coils, and voltage regulator outputs.

Key fluids and pressures are also documented, including the 0.75-liter transmission oil capacity and radiator cap pressures set at 95–125 kPa. Since this is a 2-stroke application, intake valve clearance is not applicable, but critical measurements like the 0.30–0.45 mm ring end gap are fully covered.

Precision Chassis and Torque Data

The chassis breakdown covers the telescopic front fork and monocross rear suspension, outlining exact spring rates and damping adjustments. You will find precise wear limits, such as the 3.5 mm front and 4.5 mm rear brake disc thickness, plus the 25 Nm spoke tightening torque. Crucial assembly points are clearly listed, including 28 Nm for cylinder head nuts and 60 Nm for the drive sprocket.

If you are new to factory manuals, you can review what an OEM service publication covers to see exactly how Yamaha structures this technical data.

Working on performance machines requires precision. Always cross-reference the exact specifications in this manual before applying torque, and ensure you have the proper tooling and mechanical experience before tackling high-pressure systems or suspension components.