New GX690 and GXV690 engines with enhanced fuel economy and reduced emissions

For the U.S. power equipment market, Honda introduced a new line of compact general purpose engines including the GX690 (horizontal shaft) and GXV690 (vertical shaft) engines, which combine high output with enhanced environmental performance. These 2-cylinder, OHV engines feature an integrated cylinder and head with enhanced cooling performance. Thanks to Digital Capacitor Discharge Ignition (CDI), they offer a compression ratio of 9.3:1—extremely high for air-cooled engines. Enhanced induction and volumetric efficiency and enhanced combustion made possible by the compact combustionchamber all contribute to an output of 16.6 kW―the highest among engines of equal displacement. Meeting the U.S. Environmental Protection Agency's Phase 3 emission standards without the use of a catalytic converter, the GX690 and GXV690 offer 10% lower fuel consumption, while the high-capacity cooling fan and compact 3-chamber muffler help reduce noise by 1.5 dB, compared to previous-generation models (GX670, GXV670).