108 thus allowing the user to grip the handle bar 108 with less battering from the vibrating tool 10 a lever 126 is provided on the handle bar 108 the lever 126 operates the throttle which forms part of the carburetor not shown with the lever 126 released the motor 14 will run at idle rpm when the lever 126 is gripped by the operator and pivoted toward the grip 110 the motor rpm i e the rotational speed of the crank shaft will increase resulting in a more forceful vibratory motion of the vibratory tool 10 the operator can set the severity of the vibratory motion of the vibratory tool 10 at any desired level by adjusting his or her grip on the lever 126 furthermore using the lever 126 the operator can maintain the motor rpm at such a level that will allow the operator to remain in control of the vibratory tool 10 if the user accidentally loses his or her grip the lever 126 will be released and the motor 14 will automatically return to idle rpm other safety devices such as a kill switch may also be provided for the vibratory tool 10 also the.