The 785-24001-O-0 is a brass needle jet from Mikuni’s 389 series, made for TM32–38 flat-slide carburetors. Its O-0 size delivers a leaner mid-throttle fuel mix, ideal for sharpening throttle response while avoiding an overly rich setup.
Series: 389
Material & Origin: Brass, made in Japan
Approximate Length: ~47 mm
Outer Diameter: ~6.5 mm at head, ~5.2 mm at shaft
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