Power transmission for an engine

摘要

A power transmission 14 for an engine 10 is structured such that a mounting surface 16A of a gear case (a front cover 16) with respect to a crank case 19, is line symmetrical with respect to a crank shaft 20 and that mounting holes 61A - 61H of the gear case (the front cover 16) with respect to the crank case 19 are disposed in a point symmetrical position with respect to the crank shaft 20.