... cooled, 4 stroke, OHV single cylinderBore×Stroke68mm×45mmDisplacement163ccCompression ratio8.5:1Max power output5.5HP/3600 rpmMax torque10.8N.m/ ... , etc...2. The engine features fuel efficiency and high output operation, means proven reliablity with features like oil alert, ... use and maintain with the simple throttle control, large fuel tanks, large automotive type fuel cap, dual oil drains and ...