Properly sized throttle cables are essential for safe and correct adjustments to the throttle and carburetor. This throttle cable is suitable for the 1966-1967 T120R and T120TT models with dual Amal 389 Monobloc carburetors, dual twist-grip throttle and US-specification handlebars. Also suits the 1967 T100R models with Amal 376 Monobloc carburetors. This listing is for (1) cable.
This quality cable features an inline adjuster, correct top hat ferrule at the carburetor end, and a friction-reducing nylon sheath lining for easy operation and longevity. Overall length is approximately 43″, with a sheath length of 40″, and an inner wire free length of 2-7/8″. Sourced from LF Harris in the UK.
The cable is pulled by the motion of the twist grip, allowing it to raise and lower the throttle slide in the carburetor. Fine adjustments to cable lash are made by the inline barrel adjuster on the cable. As this cable is meant for fitment to a dual-pull throttle on the twin-carburetor Bonneville models, (2) throttle cables are required.
Each carburetor’s top cap must be removed to thread the cable through the top cap. The return spring is installed over the cable, then the cable is captured in the throttle slide. The needle and clip are fitted to the slide, with the return spring compressed so it is out of the way. The twist grip body must be separated to access the rotor, which pulls the end of the cables.