The BLUE MAX 13 HP Gas Engine is an ideal choice for powering tools on the job site or at home. The OHV engine features an easy pull recoil start that powers the single cycle 4 stroke engine. The engine runs at 13 HP at 3600 RPM and has an idle speed of 1400 RPM. A side shaft and counterclockwise rotation of the shaft make it versatile for a variety of uses.