Mikuni J8-6FL14 Jet Needle for VM Series Carburetors

The Mikuni J8-6FL14 is a genuine OEM jet needle designed for precise carburetor tuning in Mikuni VM series carburetors ranging from 30mm to 38mm. This precision-engineered component controls fuel mixture in the mid-range throttle position (1/4 to 3/4 throttle), making it essential for optimizing engine performance across the power band.

Key Features:

• Genuine Mikuni OEM part manufactured in Japan for precise tolerances
• 6-series needle with 6FL14 designation for specific taper characteristics
• Length to taper: 26.7mm with top diameter of 62.1mm (2.538mm at measurement points)
• Compatible with Mikuni VM model carburetors and select OE Mikuni carburetors
• Adjustable via clip position for fine-tuning fuel delivery
• Overall length: 2.44 inches

The taper profile of the 6FL14 needle determines fuel flow characteristics - working in conjunction with the needle jet to regulate mixture throughout the mid-range throttle opening. This needle is ideal for rebuilds, performance tuning, or replacing worn needles that can cause inconsistent fuel delivery. Proper jetting is critical for optimal performance, fuel economy, and engine longevity in motorcycles, ATVs, and other powersports applications equipped with Mikuni carburetors.