Mikuni Jet Needle J8-8DDY01-95 – Richest Option for HSR42 Carburetors
Genuine Mikuni | Precision Tuning | Richest HSR42 Needle

Description:

Dial in maximum fuel delivery with the Mikuni J8-8DDY01-95 jet needle, the richest available needle for HSR42 carburetors. Whether you're running big cams, free-flow exhaust, or high-compression setups, this needle ensures your engine gets the fuel it demands.

This is a genuine Mikuni part—precision-manufactured to exact tolerances for smooth throttle response and consistent power delivery across the RPM range.

Features:

• Genuine Mikuni J8-8DDY01-95 jet needle

• Richest needle available for HSR42 carbs

• Ideal for high-performance engines or high-altitude correction

• Direct fit for Mikuni HSR42 flat slide carburetors

• CNC-machined, hardened steel construction

• Precision fuel taper for smooth throttle transitions

Fitment:

• Mikuni HSR42 carburetors (commonly used on Harley-Davidson Big Twin & Sportster models)

• May also fit HSR45 with tuning adjustment

• Compatible with aftermarket Mikuni kits using the HSR42 platform

Always confirm needle fit and adjust jetting accordingly. Intended for experienced tuners.