... .ISO, EU-2,SGS certificate 4.Strong engine backpack gasoline grass cutter 1, two stroke engine fuel (# 90 above), oil, sae30 ... gasoline in cold unit shall be. Don't cut grass don't long time use maximum throttle.3, the ... before and after each use check working part and other parts of the bolt tightness.12, have the clutch, in ... pipe(mm)26More pictures showing: 41.5cc backpack gasoline grass cutter