Internal combustion engine and hand-held power tool with internal combustion engine

A hand-held power tool comprising an internal combustion engine and a tool member, wherein the internal combustion engine comprises a crankcase having a circumferential wall extending in a circumferential direction of the crankcase;

• a crankshaft supported so as to be rotatable about an axis of rotation within the crankcase;
• a cylinder;
• at least one transfer passage extending from the crankcase into the cylinder, wherein the transfer passage has an inlet port at the crankcase;
• at least one fuel retaining device disposed on the circumferential wall of the crankcase;
• wherein a radial direction, starting at the axis of rotation of the crankshaft and extending outwardly, extends through the at least one fuel retaining device;
• wherein the at least one fuel retaining device has a depth in the radial direction and a length in the circumferential direction;
• wherein the at least one fuel retaining device, relative to the radial direction, has an asymmetric cross-section in the circumferential direction, wherein the internal combustion engine is in driving connection with the tool member.