99101-ZH7-0700 Jet, Main (#70) - Overview. The 99101-ZH7-0700 Jet, Main (#70) is an essential component of the Honda marine engine carburetor system. This part precisely controls the fuel flow at higher engine speeds, ensuring optimal combustion and reliable engine performance. Designed to integrate seamlessly with Honda marine engines, it supports efficient fuel delivery for smooth operation and long-lasting durability.. Key Features. Precisely engineered main jet (#70) designed for Honda marin