2000 Yamaha Two Stroke Service and Repair Manual

Under this 2000 two stroke entry Yamaha lists two codes, 6Y and SX250TXRY, and the reference is part number LIT-18616-01-64. Coverage extends across model years 1997 to 2005, and LIT-18616-02-02 belongs to the same series.

The material is also catalogued under the general Outboard heading. Because two quite different units share the listing, read your code from the bracket plate first; the SX250TXRY is a V6 class engine and the 6Y designation is a separate item entirely.

Procedures included

• Service limits and tightening torques
• Fuel delivery and ignition adjustment
• Powerhead and lower unit disassembly with measurement steps
• Electrical testing with expected readings

Diagnosis is arranged by symptom, which is the practical order when an engine starts but will not hold revs, or when trim behaves inconsistently.