SAITO FULL THROTTLE NEEDLE (SAI10085)

The Saito High-Speed Needle Valve is a precision fuel metering component designed to fine-tune the air-fuel mix at full throttle on Saito engines.

It fits a wide range of Saito models—including B and the D through K series, X, Y, EE, II, JJ, KK, QQ, RR, SS, UU, and the AB, AC, AG, AH, AI, AJ, AL, AM, AN, AO, and AP variants—giving tuners a versatile option for high‑rpm adjustments. By enabling precise control of fuel flow at high throttle, it helps achieve smoother throttle response and more consistent performance when dialing in a high-performance setup.