In Reply to: Center pull linkage questions posted by Corey Turner on March 08, 2000 at 15:04:19:
i installed the same top-end cable linkage kit when i went to 40 dcoe's. i think it's a very simple system that is easy to adjust and also not affected by engine movement. i think the only thing that it lacks is a locknut on the cable adjuster which can be easily done and the installation of the bottom cable bracket can be real pain(you have to remove the brake z-relay bolt to install this piece and mine was stuck) . i like not having to mess with linkage arm lengths and worn ball sockets on lever type linkages. as for the return spring, i installed one of the extra lever arms that i had, the one with the ball on the end, on the carb close to the firewall. i bent a piece of flat steel to the shape i needed, drilled a hole so i can install it on the top no.4 cylinder manifold stud and installed a spring between the two. i got the spring from a local auto parts store but i had to experiment with different springs. i wanted just enough to ensure that the carbs go back to the idle position, not too much to put undue stress on the throttle shaft bearings and seals. by the way, i set my throttle pedal lever so that its about 20 deg. from horizontal when the carbs are at idle position...no cable fraying. hope this helps
: Got a new linkage kit from topend in the mail yesterday, my old cable had frayed dangerously because of how close I had mounted it to the throttle pedal (90 deg angle to cable entrance at idle).
: Anyhow, it came w/ a centerpull assembly for the carb throttle arms. You know what i mean, the two pieces that mount together in the middle of the carbs and are adjustable there, completely removing the need for the overhead linkage components.
: I'm wondering what the drawbacks and advantages are to this sort of linkage as opposed to the overhead arm style that I currently have. I'm tempted to try it. The cable brackets from topend will also adapt to my current setup so I should be able to run it either way.
: Also, if I do convert to the centerpull linkage, what do I do about return springs? Thanks.