| 摘要 |
PROBLEM TO BE SOLVED: To provide an engine case of a unit swing type engine for efficiently cooling a V-belt type automatic transmission and preventing trouble of a self- engine starter by foreign matter contained in outside air. SOLUTION: This vehicle is mounted with a unit swing type engine 14 having a self-engine starter 45 and a V-belt type automatic transmission 31 by continuously arranging a transmission case 17 in an engine main body 16. In this case, the self-engine starter is constituted so that a starter motor is arranged outside a V-belt 33 of the V-belt automatic transmission in parallel to a crankshaft 27 and rotation of this starter motor is transmitted to the crankshaft on the engine main body central side by a drive pulley 32, and is also arranged in the unit swing type engine.
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