Mikuni 990-793-003-Q-2 166 Series Needle Jet for VM38 Round Slide Carburetor

The Mikuni 990-793-003-Q-2 is a precision-engineered 166 series needle jet designed specifically for VM38 round slide carburetors. This OEM-quality component plays a critical role in fuel metering by working in conjunction with the carburetor's jet needle to control fuel flow through the mid-range throttle positions.

Key Features:

• 166 series needle jet specification for optimal fuel atomization
• Designed for VM38 round slide carburetor applications
• Manufactured in Japan to Mikuni's exacting quality standards
• Precision-machined brass construction for durability and consistent performance
• Direct OEM replacement part for proper carburetor tuning

Needle jets are essential tuning components that determine fuel mixture characteristics in the 1/4 to 3/4 throttle range. The 166 series designation indicates the specific internal dimensions and flow characteristics of this jet. Proper needle jet selection is crucial for achieving optimal engine performance, fuel efficiency, and throttle response across various operating conditions.