Honda Mower Piston installation should be in that direction?
There are signs on the end of the top of the piston, some dots, and some arrows. Dots or arrows should point to the side of the exhaust port of the cylinder
Must ensure that the piston is installed, in the process of back and forth movement, the piston ring can not open the front of the sweep, air intake, exhaust. In short, the piston ring in the course of movement, must always contact with the cylinder wall, can not encounter the gap.
Tell the landlord a never wrong can not find the most fundamental way to choose the direction of the piston: see the piston ring opening.