By turning the screw, you can precisely adjust the idle throttle position to prevent the engine from stalling. Suitable for HSR42/45 and TMR42/45 carburetors.

Mikuni, founded in Japan in 1923, is renowned for manufacturing high-quality carburetors and fuel systems for motorcycles, scooters, and other powersports vehicles. The brand is known for its innovative designs that enhance engine performance, fuel efficiency, and throttle response. Mikuni carburetors are widely used in both OEM applications and the aftermarket, catering to a diverse range of vehicles. With a commitment to quality and precision engineering, Mikuni has established itself as a trusted name among enthusiasts and professionals in the motorcycle industry.
SPEED SCREW (LONG) FOR CARBURETOR HSR42/45 AND TMR42/45
/ pcs.