Carburetor Synchronization

SAFETY FIRST: Protective gloves and eyewear are recommended at this point.

Remove the fuel tank. See the Fuel Tank topic for more information.

Set up a remote fuel source for the carburetors.

Remove the vacuum line and three vacuum plugs.

Install a vacuum gauge onto the vacuum inlets, some gauges are different so be sure to follow the manufacturers instructions. Start the motorcycle and get the idle set to 1,750 RPM. At this point check your gauges if they are even then the carburetors are properly set.

If your gauges are uneven you will have to turn the three valve synchronizing screws to even out your reading. Make small adjustments and watch your gauges, you may have to turn the screws in or out. At the end you want all four carburetors having the same vacuum.

When you get the carburetors balanced replace the vacuum plugs and set your idle speed to 1,200 RPM

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