Accurately synchronizes each carburetor throttle plate on multi-carburetor engines
For cycles with multi-carb engines (except Yamaha FZR models)
Gauges are calibrated to measure 0-30" (0-760mm) Hg for vacuum and 0-9 psi (0-.63kg/cm2) for pressure. Includes 2-1/2" diam. gauges. For 2-, 3- or 4-carb cycles (except Yamaha FZR models). Includes 4 gauges and 4 controllable dampening valves.