Review on ALPHA MOTO Universal Motorcycle Vacuum Carburetor Synchronizer Synchronization Balancer Carb Sync Balancing Gauge | Compatible With Honda Yamaha Kawasaki Suzuki GS KZ XS CB 550 650 750 850 900 BMW by Ryan Judy

The tool is really good and comes with a very nice case for safe keeping. It was delivered faster than the stated delivery date. And everything looks like new. I hooked it up to the bike and it was very easy to sync all 4 carbs on an early Honda CB750 I work on. I am very happy with this item and the seller. The sensors need to be calibrated when you get them so they all read zero. Simply unscrew the lenses and turn the adjustment screw as instructed in the documentation that accompanies the gauge. This kit includes all shock absorbers, hoses and fittings to connect to the bike. If you have a Yamaha I think you need to get other fittings that connect to the carburetors as they are a different size. As such, it will fit most bikes, and some will require you to order fittings that connect to carburetors or throttle bodies.