
Marine$8.29

MIKUNI
In stock · stock as of Sep 3, 2026
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The 785-24001-O-4 is a brass needle jet from Mikuni’s 389 series, made to fit TM32–TM38 flat-slide carburetors. The O-4 size flows more fuel than the O-2, giving your engine a richer mid-throttle mix. It's a solid choice if your bike feels a bit lean under load and you want smoother acceleration without going too rich. Jet Series: 389 Fits: TM32, TM34, TM36, TM38 carbs Material: Brass Length: About 47 mm Head Diameter: Roughly 6.5 mm Shaft Diameter: Around 5.2 mm WARNING:Cancer and Reproductive Harm www.P65warnings.ca.govwww.P65Warnings.ca.gov | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov