Motion Pro; SyncPro carburetor syncronizing tool.

•Precise four channel vacuum indicator designed specifically for intake synchronization of engines with multiple carburetors or throttle bodies (maximum vacuum rating for this tool is 40cm Hg)
•New mercury-free design uses non toxic manometer fluid
•For use with any 2, 3 or 4 cylinder four stroke motorcycles
•Spill proof design means the tool can be stored in a horizontal or vertical position
•Easy to read scale for precise synchronization
•Unaffected by barometric pressure changes
•Includes hang hook to clip onto the handlebars for easy use
•Rugged, impact resistant ABS enclosure with convenient storage area for adapters
•Rubber feet on enclosure bottom helps prevent sliding
•Includes manometer fluid, hoses, 5mm adapters, in-line restrictors and instructions
•5mm adapters are used on many Honda and Suzuki models
•Optional 6mm Yamaha models do not need adapters
•Patented Design