Harley Jet Kits and Parts

Proper carburetor sealing is non-negotiable for consistent fuel delivery and peak engine performance. These OEM Mikuni o-rings prevent fuel leaks and maintain precise air-fuel ratios by creating reliable seals on your HSR Series carburetor. With a...

The MIKUNI HSR Series 45 Jet Kit delivers precise fuel metering for carbureted engines requiring calibration beyond stock jetting specifications. Whether you're running a forced induction setup, higher-octane fuel, or altitude-specific tuning, this kit...

Proper jet sizing is critical for carburetor tuning, and worn or damaged washers compromise fuel atomization and throttle response. This OEM-spec 4-pack ensures your MIKUNI HSR45 maintains factory precision tolerances, whether you're fine-tuning for...

Jet needle tuning is critical to carburetor optimization, and the MIKUNI Jet Needle E-Ring gives you precise control over fuel delivery across the mid-range throttle range. If your carb is running rich or lean in the cruise-to-acceleration zone, swapping...

Fine-tuning your carburetor's fuel delivery is essential for extracting consistent power across the RPM range, and the MIKUNI HSR Series 48 Jet Kit does exactly that. Whether you're running a modified engine with increased displacement or optimizing for...

If you're running a stock or modified 1200cc Harley with a CV carburetor, throttle response and fuel delivery are often the first limitations you'll hit. The DYNOJET Thunderslide Jet Kit addresses this directly by optimizing how your slide opens relative...

If you're running a stock Keihin CV carburetor on your 883, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel and air mixture to unlock the true potential of your engine while maintaining the reliability you need for...

If you're running a stock Keihin CV carburetor on your XL 1200S, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel delivery across the entire throttle range, unlocking the power your engine is capable of while preserving...

If you're running a stock or modified '98-'03 Harley-Davidson 1200S, carburetor tuning is the difference between leaving power on the table and extracting real performance gains. The DYNOJET Thunderslide Jet Kit optimizes fuel delivery and throttle...

If you're running a stock Keihin CV carburetor on your Buell Blast, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel mixture across the entire rev range, unlocking the horsepower and torque your engine is capable of...

If your Twin Cam engine is running rich or struggling with throttle response, a proper jetting solution is essential—stock CV carburetors simply aren't calibrated for modern riding conditions or aftermarket modifications. The DYNOJET Thunderslide Jet Kit...

A properly jetted carburetor is the foundation of responsive throttle control and reliable performance on your Twin Cam engine. The Thunderslide Jet Kit optimizes fuel delivery across the entire throttle range, eliminating lean conditions and dead spots...

If you're running an 80+ horsepower engine and want throttle response that matches your bike's power output, a proper fuel delivery tune is non-negotiable. The DYNOJET Stage-7 Thunderslide Jet Kit optimizes your carburetor's air-fuel ratio across the...

If you're running a Twin Cam carbureted engine and want responsive throttle control paired with measurable power gains, a properly jetted carburetor is non-negotiable. The DYNOJET Thunderslide Jet Kit addresses both fuel delivery precision and throttle...

If you're running a stock Keihin CV carburetor on your Twin Cam 8120, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel mapping across the entire throttle range, unlocking the horsepower and torque your engine is capable...

If you're running a Twin Cam 8130 with a CV carburetor, throttle response and fuel delivery are the limiting factors between where your engine is now and where it could be. The DYNOJET Thunderslide Jet Kit addresses both by optimizing slide opening rate...

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

If you're running a stock or modified CV carburetor on your '04-'06 XL, the DYNOJET Thunderslide Jet Kit directly improves throttle response and engine efficiency by optimizing how your slide moves relative to fuel delivery. The precision-engineered lift...

If you're running a stock Keihin CV carburetor on your Twin Cam and want to unlock the engine's true performance potential, a proper jetting recalibration is non-negotiable. The DYNOJET Jet Kit delivers broad-range performance gains across the RPM band...

If you're running a stock Keihin CV carburetor on your XL 883, 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...