1992-1993 Yamaha WR200 / WR200R Service Manual

Technical Scope for the 1992–1993 Yamaha WR200R

• Covers 1992–1993 Yamaha WR200 and WR200R dual-sport motorcycles, specifically documenting the WR200R(D) variant
• Original OEM publication 4BF-000101, documenting primary chassis and engine configurations for the 1992–1993 model years
• Contains 47 detailed exploded-view component diagrams, comprehensive electrical wiring schematics, and extensive torque-check value tables
• File downloads to your account within seconds of checkout
• Page layout optimized for printing individual sections for shop-floor use
• Indexed PDF search allows you to jump to a specific torque spec or electrical value by keyword
• This 1992-1993 edition provides the necessary factory-authorized clearances and wear limits required to maintain the 4BF-series engine top end and drivetrain

Engine and Chassis Documentation

This 1992–1993 Yamaha WR200 service manual provides technical oversight of the 199.7 cc liquid-cooled 2-stroke engine and 6-speed constant-mesh transmission. Chapters detail the removal and inspection of the cylinder head, piston assemblies, and reed valve configurations, alongside maintenance for the MIKUNI TM30SS carburetor. The electrical section covers the ignition system, magneto charging coils, and voltage regulator specs. Transmission oil capacity is documented at 0.75 liters. The cooling system includes radiator maintenance, with cap pressure specified at 95–125 kPa. Intake valve clearance is not applicable due to the 2-stroke design, but ring end gap is set at 0.30–0.45 mm.

Precision Chassis and Torque Data

Chassis documentation covers the telescopic front fork and monocross rear suspension, including spring rates and damping adjustment procedures. Front brake disc thickness is documented at 3.5 mm. Rear disc thickness is listed at 4.5 mm. Spoke tightening torque is specified at 25 Nm. Torque values for primary assembly points include the cylinder head nuts at 28 Nm and the drive sprocket at 60 Nm. Reference what an OEM service publication covers to understand how the factory organizes these specifications. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official Yamaha publication covers the 1992–1993 Yamaha WR200 and WR200R, providing comprehensive mechanical, electrical, and structural specifications for the maintenance and care of this 2-stroke performance machine.