Fuel System

The Moroso air-oil separator/catch can system keeps the H-D cylinder head breather system fully functional. It filters out crankcase vapors, oil mist & condensation that normally vent to the intake system. This will keep your air filter, throttle body,...

The Moroso air-oil separator/catch can system keeps the H-D cylinder head breather system fully functional. It filters out crankcase vapors, oil mist & condensation that normally vent to the intake system. This will keep your air filter, throttle body,...

Mikuni Jet Needle Hsr45 Leaner J8-8Cfy02-98

The worlds first BALL BEARING petcock with detents for quick, effortless switching from “ON” to “RESERVE” to “OFF”. O-Ring seat secure any leak from petcock to carburator, Petcock handle motion is virtually friction free using internal ball bearing...

The worlds first BALL BEARING petcock with detents for quick, effortless switching from “ON” to “RESERVE” to “OFF”. O-Ring seat secure any leak from petcock to carburator, Petcock handle motion is virtually friction free using internal ball bearing...

These kits incorporate a custom made slide. The unique configuration allows precise control over the slide’s range of movement and creates a stronger signal, which improves fuel atomization. This provides more power, increased throttle response and...

Ten different flow rates with part numbers for 2001 and later modelsMade in the USA using the latest injector technologySold in matched sets (two injectors)Detailed test report included with each setNot for use in California

Hard to find replacement part for Keihin carbsQuality reproduction of the original part found on stock carbs

Cycle Pro Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all OEM specificationsDirect Fit, No Modifications NeededExtra High temperature Dual Shield EndImproved Engine PerformanceUSA Made

Cycle Pro Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all OEM specificationsDirect Fit, No Modifications NeededExtra High temperature Dual Shield EndImproved Engine PerformanceUSA Made

Direct fit, no drilling neededMade of high quality brass components, NOT aluminumImproved engine performanceEZ installKits include Cycle Pro flow jetsDetailed instructions for jetting your motor from stock to modifiedComponents made in the USANOT FOR USE...

6000 series valves are a universal fit that can be used in almost every tank locationOffered in Show Chrome and Polished Brass22mm inlet for 1975 and up applications5/16" outlet barb274-0504 does not have reserve