| 摘要 |
PURPOSE:To make a vibration being hard to be transmitted to a body frame and improve a feeling of driving comfortableness ever so better, by making elasticity in the front side of an elastic member supporting an engine body softer than that in the rear side, while letting the engine body rock with the rear side as a supporting point. CONSTITUTION:A rear end of an engine body 22 is pivontaly supported on a transmission 11 lyinh between both rear-wheel axle tubes 9 and 9 via a cylindrical bush-form elastic member 28, while the front end is supported on the support frame 25 stretched across between these rear-wheel axle tubes 9 and a body frame 2 via a rubber mount 32. And, this rubber mount 32 is set to be softer than the cylindrical bush 28 whereby the engine body 22 is rocked with a fulcrum shaft 27 as a supporting point, thus vibro-energy is absorbable. In consequence, vibration of the engine body 22 are hard to be transmitted to the body frame 22, making a body sensitive vibration smaller, and a feeling of driving comfortableness is improvable.
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