4x rubber pipes (8mm x 5mm x 750mm). 4x synchronizers with fixed plates (vacuum). There is a pressure value on the gauge. The maximum pressure is 1KG. If the pressure exceeds or is unstable, the guage can be broke.
Fuel Vacuum Carburetor Synchronizer Carb Synchronizer Gauge Adjustment Tool
Fuel Vacuum Carburetor Synchronizer Carb Sync Gauge For GS CB KZ XS 550 650 750
Fuel Vacuum Carburetor Synchronizer Carb Sync Gauge Set Adjustable Motor
VEVOR Pro Fuel Vacuum Carburetor Synchronizer carb sync Gauge Set Rubber Hose
Fuel Vacuum Carburetor Synchronizer Carb Sync Gauge Fit For Yamaha Honda Suzuki
