Mikuni 990-793-003-R-8 166 Series Needle Jet for VM38 Carburetor

The Mikuni 990-793-003-R-8 is a genuine 166 series needle jet designed specifically for VM38 round slide carburetors. This precision-engineered component plays a critical role in carburetor tuning, controlling fuel metering during the quarter to three-quarter throttle range where precise air-fuel mixture control is essential for optimal engine performance.

Key Features:

• 166 series needle jet with R-8 size designation
• Designed for Mikuni VM38 spigot mount carburetors
• Allows precise carburetor tuning at 1/4 to 3/4 throttle opening
• Features series and size stamping for easy identification
• Inside diameter increases progressively with alphabetical and numerical size code progression
• Genuine Mikuni quality, manufactured in Japan
• Compatible with round slide VM38 carburetor designs

This needle jet is an essential tuning component for motorcycles, ATVs, UTVs, and other powersports applications equipped with Mikuni VM38 carburetors. The R-8 size designation indicates a specific internal diameter that works with corresponding jet needles to achieve the desired fuel mixture. When selecting a needle jet, verify the series number and size code against your carburetor's parts diagram to ensure proper fitment and performance.