Tuning kits

Complete assortment of 7 different diaphragm springs for vacuum secondary carburetors. The stiffness of the spring determines when the secondaries open.BrandDemonEmission Code5MaterialSteelProduct TypeVacuum Spring AssortmentQty7Part Number120083..

Rebuild kit for 750 Street Demon® carburetors Features:Services all 750 Street Demon® CarburetorsGenuine Demon partsStep-By-Step InstructionsBrandDemonEmission Code5Kit TypeDemonModelStreet Demon 750Product TypeRebuild KitPart Number1919..

Rebuild kit for 625 Street Demon carburetorsFeatures:Services all 625 Street Demon CarburetorsGenuine Demon partsStep-By-Step InstructionsBrandDemonEmission Code5Kit TypeDemonModelStreet Demon 625Product TypeRebuild KitPart Number1920..

625 Street Demon® calibration kits feature an assortment of metering rods, jets and step-up springs to fine tune to your application.Features:Primary main jet assorment of .074, .076, .080 and .082Secondary main jet assortment of .078 and .082Metring rod assortment of .056/.048, .058/.050, .058/.052, .060/.050, .062/.054 and .064/.056Step-Up spring assortment of orange, blue, yellow and silver spr..

750 Street Demon® calibration kits feature an assortment of metering rods, jets and step-up springs to fine tune to your application.Features:Primary main jet assorment of .087 and .091Secondary main jet assortment of .084 and .088Metring rod assortment of .054/.038, .058/.044Step-Up spring assortment of orange, blue, yellow and silver springsHard yellow storage caseBrandDemonEmission Code5Product..