... .5HP Start system:recoil start gasoline engine air cooled gasoline engine 5.5hpSingle cylinder ,4-stroke ,air cooled gasoline engine 5.5hp ,6.5hp ,8hp,9hp ,11hp ,13hp ... Engine ModelGX160GX200GX240GX270GX340GX390TypeOHV,Tilt,Single cylinder,4-stroke,Forced ...