Vacuum gauge carburetor synchronizing tool for 4 cylinder bikes. This is a complete kit with hoses, adapters, mounting plate and instructions. It's a great kit to have if you're tuning any 4 cylinder bike and you want to get the carbs balanced so the engine will run smoothly. It's one of the final steps in a complete tune up. You can use this tool on 3, 2, or single cylinder bikes as well. Set up the bike with the tank off, run a fuel line to the carbs and make sure you have a fan to keep the engine from overheating. Do this in a well ventilated area. Connect the synch tool and adjust all 4 carbs so they show the same reading on the gauges.
We also have the 2 cylinder version available and a great 90 degree driver tool.