Harley Jet Kits and Parts

If you're running a stock Keihin CV carburetor on your Harley-Davidson 883, 1200, or 1340, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your carb's jetting and needle positions to unlock the full potential of your engine,...

If you're running a stock Keihin CV carburetor on your XL1200, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel delivery across the entire RPM range, unlocking the power your engine was designed to produce while...

Carburetor tuning is only as effective as your fuel atomization. The YOST Performance HSR Series 42/45 Power Tube Kit converts raw fuel spray into a fine, consistent mist—eliminating the hesitation, spitting, and popping that compromise throttle response...

Fine-tuning carburetor jetting can consume hours of your shop time—until now. This adjustable main jet system eliminates the tedious cycle of swapping jets when dialing in fuel mixture, switching fuel grades, or adapting to altitude changes. Install...

Carburetor jetting directly impacts your engine's fuel delivery across the entire RPM range—too lean and you risk detonation and loss of power, too rich and you're wasting fuel and fouling plugs. The S&S Cycle Super E and G Carburetor Master Jet Kit...

The MIKUNI HSR Series 45 pump nozzle is engineered for precision fuel atomization in high-performance carburetors, delivering consistent jetting across a wide range of engine speeds and loads. This OEM-quality component ensures reliable cold starts,...

If you're running a high-output Harley engine and want throttle response that actually matches your riding demands, carburetor tuning becomes non-negotiable. The DYNOJET Thunderslide Jet Kit addresses the inherent lag in stock CV carburetors by...

Fine-tuning a 40mm carburetor requires precision components that won't drift out of spec after the first heat cycle. The YOST Performance CV Carburetor Master Kit delivers CNC-machined brass atomizers and jets engineered for consistent fuel atomization...

Carburetor tuning demands precision, and fuel atomization is where performance gains happen. The YOST PERFORMANCE Super E and G Power Tube converts raw fuel delivery into a consistently fine mist, eliminating the spitting and popping that signals...