Carburetor Synchronizer Gauge Set, 4 Gauges, Hoses, Case

Carburetor synchronizer gauge set helps balance multi-carb engines for smoother idle and more consistent throttle response. This 4-gauge vacuum sync kit uses brass lockable valves plus individual damping and calibration controls to steady needle movement and improve readability. Built on a heavy metal base for bench-top stability, it includes multiple adapters and long rubber hoses for convenient routing while tuning motorcycles and other vacuum systems.

• Delivers 4 precision gauges with brass lockable valves for controlled, repeatable vacuum readings


• Stabilizes readings with individual damping control to reduce needle bounce during carb sync


• Supports 2–4 carburetors to help dial in balance for multi-carb motorcycle setups


• Includes 4 adapter sizes plus 4 long rubber hoses for remote access and flexible hookup


• Stores cleanly in a lockable carrying case for transport to the garage, track, or shop

Use this vacuum gauge kit to troubleshoot and tune: connect the hoses, zero the gauges, start the engine, then adjust until readings match across cylinders. The rugged chrome-finish hardware and stable frame are designed for regular workshop use, while the color-coded dials keep fast checks simple. Beyond motorcycle carburetor balancing, it can assist with diagnosing vacuum-related issues in pumps, compressors, pneumatic equipment, and motors. Grab yours today and keep your next sync job organized and efficient.

• Plate length: 15.6 in (40 cm)


• Rubber hose length: 30 in (74 cm), qty: 4


• Adapter sizes: 1.96 in (5 cm), 2.4 in (6 cm), 3.9 in (10 cm), 6.7 in (17 cm)


• Carrying case size: 16.5 × 9.8 in (42 × 24.5 cm)


• Gauges: 4, color-coded scales; bench-mount heavy metal base