Two-stroke cylinder bore with piston at top, exhaust and transfe…

Close-up down into a two-stroke cylinder with the head removed, showing the piston near the top of the bore, the large bridged exhaust port and transfer port openings in the cylinder wall. The piston crown is stamped 'EX' with a directional arrow, the bore still carries fine honing marks, and the head gasket surface and studs show corrosion and old carbon deposits.

AI caption May 2011 · Photo 1304 of 1549