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The 785-24001-Q-4 is a brass needle jet from Mikuni’s 389 series, built for TM32–TM38 flat-slide carburetors. With a Q-4 size, it delivers a slightly richer mid-throttle mixture than a Q-2 but still leans out compared to the P-series jets. It’s a great option when you want to improve throttle response while maintaining a fuel-efficient and controlled midrange.
- Jet Series: 389
- Fits: Mikuni TM32, TM34, TM36, TM38 flat-slide carbs
- Material: Brass
- Length: Approximately 47 mm
- Head Diameter: About 6.5 mm
- Shaft Diameter: Around 5.2 mm
- WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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