Jetting for Mikuni CV

The most complete app for tuning Mikuni constant-velocity carburettors: the BS, BST, BSR, BDS, BDST and BDSR series. It simulates setups and compares them against each other across the whole throttle range, for four-stroke road bikes. This is the carburettor fitted as standard to thousands of bikes between 1985 and 2010: Suzuki GSX-R, Bandit, Katana, Intruder, SV650 and GS500; Yamaha V-Max, YZF-R1, Fazer, V Star and Virago; Ducati Monster and SuperSport; the Triumph 900 series; Kawasaki ZX-6R and ZZR600; and the Aprilia Moto 6.5. WHAT MAKES THIS FAMILY DIFFERENT On a slide carburettor the twistgrip pulls the slide with a cable. Not here: the twistgrip moves a butterfly valve, and the slide is raised by manifold vacuum working against a spring and a diaphragm. That is why the needle works according to what the engine is asking for, not according to how far you have turned the grip. This…