Throttle twist grip

A handlebar mounted twist grip throttle assembly for controlling the speed and cylinder compression of an internal combustion engine in a motorcycle vehicle or the like and of the type operable for manipulating an engine control cable, including:

• an hand grip section;
• means adapted to be secured to a handlebar associated with said vehicle for rotatably mounting said grip section thereon;
• means on said hand grip section adapted for fastening said control cable thereto, said control cable being shiftable in response to the manual rotation of said grip section,
• said grip section being normally rotatable in a first rotational range for shifting said cable to affect the delivery of fuel to said engine whereby to control the speed of latter,
• said first range including a first grip section position corresponding to an idle speed condition of said engine and a second grip section position corresponding to a full-throttle speed condition of said engine,
• said grip section being also rotatable into a second rotational range different than said first range for effecting the compression release of said engine;
• and
• latch means connected with the combination of said mounting means and said grip section for selectively allowing rotation of the latter between said first and second rotational ranges thereof,
• said latch means including an actuating portion adjacent said grip section and operable by a finger of the vehicle's operator hand while the latter grips said grip section,
• said latch means further including a releasable latching portion cooperating with said mounting means for normally confining the rotation of said grip section to said first rotational range thereof but being releasable in response to the operation of said actuating portion to allow rotation of said grip section from said first rotational range thereof into said second rotational range thereof whereby to effect compression release of said engine by said grip section.