Installation Instructions for Nichols Flywheels Click on the links to the left or on the corresponding images for instructions. Click on the links for instructions:     Carbureted 1990-1998     Carbureted 1998 & newer     Fuel Injected 1990-1995     Fuel Injected 1996-1998     Fuel Injected 1999 & newer     SPS Models 1999-2001 (If you do not find your Ducati listed, please call us at  408-945-0911)