Deluxe tune up kit for the Honda CB450 & CL450 twins, check the year range listed below. This is a great basic kit for bringing a 450 twin back to life! No oil filter is necessary since the twins use a centrifugal filtering system which just needs to be cleaned. B8ES NGK Spark Plug x2. VD05F NGK 120 Degree Spark Plug Cap x2. Float bowl gasket Round Slide assembly Gasket D31 slide needle and round needle seat Float needle and 2.0 seat with washer #145 main jet - Carb model 723A, 727A #150 main jet - Carb model 723B #38 primary slow jet #38 secondary slow jet (goes on top of the ...