- Wed Jul 12, 2017 9:03 pm
#69067
Hi guys------my it's getting crowded in here tonight-------PAPPASMURF your photo shows a CV type of carb ( Constant Velocity or Constant Vacuum ) which utilises a diaphragm attached to the top of the slide and as its' name suggests a vacuumm applied above that diaphragm will cause the slide to lift IN PROPORTION to the amount applied..........In front of the slide is a circular flap valve which is actuated by your throttle cable and your dainty twisty-wristy !!....That's why your cable is off-set from the centre-line and attached to a form of bell crank..........An added bonus is that as a rider you are only ever pulling against the return spring and not the combined effect of spring AND slide as in the earlier non-CV types... AMALs are NON-CV.....SU are CV.........and the cables are a 5 min job to change as well !!