Extended vacuum adapter includes 1-1/2' of santoprene hose and is ideal for permanent mounting on sport bikes or any other vehicles where access to the carburetor or fuel-injection synchronizing ports requires removal of various side panels, air filters or the fuel tank Unique flexi-rigid adapter easily allows synchronization of machines with difficult-to-reach 5 mm or 6 mm carburetor or fuel-injection vacuum ports Simply bend outer sheath to appropriate angle/shape and turn inner tube to thread brass fitting into vacuum port. TOOL CARB ADAPT M6 SHORT