Mikuni Throttle Slide Cutaway for Carburetors

Mikuni throttle slides, also called throttle valves or carburetor slides, are genuine replacement parts for Mikuni carburetors. They are used on motorcycles, powersports machines and other small-engine applications. The slide moves up and down in the carburetor bore to control airflow as the throttle opens. This makes it a key part of the carburetor's fuel metering.

Key Features:

• Genuine Mikuni replacement part: Designed as a direct replacement for worn or damaged slides in Mikuni carburetors, so you can rebuild or refresh a carburetor with factory-style parts.
• Tunable cutaway: The cutaway is the angled notch on the air-inlet side of the slide. It affects the air-fuel mixture mainly from about 1/8 to 1/2 throttle, and most of all from 1/8 to 1/4 throttle.
• Mixture tuning: A larger cutaway lets in more air and leans the mixture. A smaller cutaway gives a richer mixture. Changing the cutaway is a common way to fine-tune throttle response after changing the intake, exhaust or engine.
• Series-specific design: Slides are made in different series for different Mikuni carburetor models. They differ in idle-groove side and guide-pin slot width, so match the slide series to your carburetor.
• Durable construction: Brass slides are chrome plated. Aluminum slides are anodized, Xylan-coated or nickel-plated to resist wear.

Mikuni has a long reputation for quality carburetors and tuning parts. A correctly chosen throttle slide helps restore crisp throttle response and smooth, consistent running. Choose the part number that matches your carburetor series and the cutaway you want.