DELLORTO FZD CARBURETORS' IDLE JET. new-never used. total length of the jet 59mm. The jets were produced following the original,unique, dell'orto's way of numbering the jet sizes. this will assist buyers that follow factory recommended settings.below are a few examples; ---idle jet numbered 40 is a jet with a 0.38mm hole. ---idle jet numbered 57 is a jet with a 0.53mm hole ---idle jet numbered 58 is a jet with a 0.54mm hole ---idle jet numbered 60 is a jet with a 0.56mm hole ---idle jet numbered 50 is an idle jet with a 0.47mm hole ---idle jet numbered 65 is an idle jet with a 0.61mm hole ---etc........ GUARANTEED PRODUCTS! sizes available are; #30,#35,#40#41,#42,#43,#44,#45,#46,#47,#48,#49 #50,#51,#52,,#53,#54#55,#56,#57,#58,#59, #60,#61,#62,#63,#64#65,#66,#67,#68,#69, #70,#75,#80,#85,#90,#95,#100.
