*4 Precision Gauges: Upgrade vacuum carburetor set features 4 precision gauges with brass lockable valves. Each gauge has its own individual damping control and calibration control. Gauges are mounted to a heavy metal base intended for bench top use. The colored coded scales on the gauge is designed for easy reading.*Durable Frame & Multi-Function: This vacuum carburetor tool features sturdy construction with all hardware is high-grade chrome finish, and it can quickly diagnose improper timing, stuck valves, leaking manifolds, improper fuel mixture, spark misfires, and much more. What's more, the vacuum carburetor can synchronize the values of up to 2-4 carburetors.*Complete Accessories: The set comes with 4 types of adapters for most motorcycle models, and a 4 PCS 30" rubber hose facilitate remote use. The product also provides you with a convenient carrying case equipped with a handle and lock for easy transportation and storage. In short, these combinations can help you troubleshoot.*Easy Operation: When you operate tuning procedure, make sure all gauges are calibrated to zero before using. Firstly, you need to start the engine, let it idle, check the gauges, adjust the dial slightly if the needle is bouncing around, and adjust the screw until the sync is obtained. Secondly, stall the motorcycle, give the throttle a few snap-back and repeat the process until the designer result is achieved.*Wide Applications: While synchronizing your bike's carburetors is the most common and important job to service your beloved motorcycle, getting the right tool to do the job is equally important, it is applicable for pumps, compressors, hydraulic presses, machinery, pneumatic equipment, and motors.********************************************************************************************************SpecificationsLength of Rubber Pipe: 30 in/ 74 cmLength of Plate: 15.6 in/ 40 cmAdapter Sizes 1: 1.96 in/ 5 cmAdapters size 2: 2.4 in/ 6 cmAdapters size 3: 3.9 in/ 10 cmAdapters size 4: 6.7 in/ 17 cmSize of Carrying Case: 16.5 x 9.8/ 42 x 24.5 cm********************************************************************************************************Pakcage Content1 x Synchronizer Gauge4 x Rubber Pipe17 x Adapter1 x Carrying Case