Harley-Davidson has used the 40mm Keihin constant velocity (CV) carburetor since 1988 on Sportsters and introduced them in 1990 on the Big Twins. The 1988 model differed from the 1989-and-later ...

Keihin, or Lectron and you take it step by step, it’s really not too difficult. Today we are going to start a multipart series on how to tune or “jet” a carb. Step one is to understand how ...

February 3, 2010 Keihin FCR Carburetors are acknowledged as the ... Sudco can also provide optional jetting if needed to match other engine modifications. For additional information and pricing ...

Keihin FCR Carburetors are acknowledged as the leading ... Sudco can also provide optional jetting if needed to match other engine modifications. Complete Kits are retail priced from $892.50 ...