Including Type approval , only valid for LC4 640 with Mikuni carburator . Mounting only with factory headers possible . Muffler inserts can be removed. 60% weight reduction compared with the original stainless-steel version .We recommend that you use the suitable PP filter box cover and the following main jet: Mikuni carburetor: 157.5 ( 584.31.023.157 ) ; Keihin carburetor: 188 ( 545.31.623.188 ) SXC 02 , SMC 660 03-04 , 640 LC4 Enduro 94-06 , 640 Adventure 98-07 , 640 LC4 Supermoto 94-04
