• 128MB USB Drive - includes RD350/400 Parts Diagrams, Service Manuals and Wiring Diagrams. Included on this flash/USB drive are .PDF files:
    • RD350 Parts Diagrams by Yamaha
    • RD350 Service Manual by Yamaha
    • RD350_(US)_wiring_diagram - Aftermarket diagram
    • RD400 Parts Diagrams - by Yamaha
    • RD400 Service Manual - Aftermarket Euro Haynes Manual - out of print
    • RD400_(US)_wiring_diagram - Aftermarket
    These files are commonly available on the internet and Economy Cycle has not vetted or checked for accuracy, provided for informational purposes only, use at your own risk.  
  • Haynes Yamaha RD400 2 Stroke Twins Manual - Comprehensive shop manual covers all aspects of service and repair including engine rebuild.
  • A handy pocket-size slide calculator which can be used to determine required jetting changes in Mikuni Carburetors due to climate and temperature changes. The Pocket Tuner is applicable to both single and multi-carburetor applications on two-stroke and four-stroke engines. It also has a guide for determining rich or lean carburetor conditions.
  • Mikuni Carburetor Tuning Manual. Includes complete parts list, functions, maintenance, troubleshooting and parts selection for Mikuni carburetors.
  • Yamaha RD200 Factory Service Manual. Original Factory Service Manual, includes RD200. Yamaha licensed manual. This is the original RD200 manual. Manuals are no longer available from Yamaha, however Yamaha has licensed a private publisher to
  • Yamaha RD250/350 Factory Service Manual. Original Factory Service Manual, includes RD250/350. Yamaha licensed manual. This is the original RD250/350 manual. Manuals are no longer available from Yamaha, however Yamaha has licensed a private publisher to print these fully bound manuals with all original pictures, specifications and diagrams as originally issued. Click add to cart and choose model.
  • Yamaha RD400 Factory Service Manual (RD400C/D/E/F). Original Factory Service Manual, includes RD400F Daytona Supplement. Yamaha licensed manual. This is the original RD400 manual for C/D/E models and the RD400F supplement. Manuals are no longer available from Yamaha, however Yamaha has licensed a private publisher to print these fully bound manuals with all original pictures, specifications and diagrams as originally issued
  • Yamaha RD400 Parts Catalog / Diagrams - Click on the Economy Cycle logo at the top of the page to go to our home page or the categories on the left for more RD parts.
  • Yamaha RD400 Repair Manual on CD