1990-2000 Yamaha RT100A Service Manual

Yamaha RT100A 1990–2000 Technical Scope

• Covers 1990–2000 Yamaha RT100A motorcycles with 97 cc 2-stroke air-cooled engines and 5-speed transmissions
• Official Yamaha publication P/N LIT-11616-07-35, first edition January 1990
• Includes 15 detailed exploded-view diagrams of engine, chassis, and transmission components along with torque specification tables
• File link appears in your order confirmation straight away
• Suitable for printing individual sections for shop-floor use
• This 1990 first edition is the primary reference for the 1990–2000 RT100A production series, covering critical assembly, disassembly, and maintenance parameters

What the Manual Documents

The 1990–2000 Yamaha RT100A service manual contains extensive technical documentation structured for professional maintenance. Beginning with machine identification and serial number tracking, the content progresses into detailed maintenance schedules for the engine, transmission, and chassis components. Chapters cover engine removal and overhaul procedures, including piston, cylinder, and clutch assembly analysis. The carburetion section describes the Mikuni VM22SS setup, while the chassis section provides guidance for front fork, rear shock, steering head, and drive chain maintenance. Electrical system coverage focuses on the CDI magneto ignition and testing of source and pickup coils.

Specification Highlights

This 1990–2000 Yamaha RT100A publication provides deep technical data, including cylinder head warpage limits of 0.02 mm and a piston-to-cylinder clearance range of 0.050–0.055 mm. How factory workshop documentation is structured is outlined in the initial chapters for consistent service execution. Crankshaft runout is documented at a 0.03 mm limit. Primary drive gear tightening is specified at 60 Nm (43 ft-lb). Transmission oil capacity is listed at 0.65 liters. 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. An official 100-page Yamaha OEM workshop manual covering the 1990–2000 RT100A, documenting engine, chassis, electrical, and carburetor specifications for the 3UL-series build.