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1979 Honda CB400TI Hawk I Carburetor Tools

A two-gauge synchronizer lets you compare the carburetors during service on the 1979 Hawk I. Before buying the universal kit, check how its adapters will connect to the motorcycle. The supplied extension lengths and threads describe the tool; they do not prove the engine’s port thread.

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Universal motorcycle carburetor synchronizer vacuum gauge 2 carb synchronizer

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer

$54.95 USD
37-0003
Carburetor and throttle body synchronizer kit for bikes with 2 Carbs. Makes synching your carburetor setup fast and easy! For use with Honda, Kawasaki,...
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1979 Honda CB400TI Hawk I · Carburetor Tools Buying guide

Confirm the adapters before setting up the gauges

This kit provides two gauges and the associated hoses and damping valves. Plan the cylinder-head connections using Honda’s service information, then confirm that the supplied adapters fit the parts actually on the motorcycle.

Parts to consider

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer Universal two-gauge synchronizerTwo gauges with hoses, damping valves, bracket and instructions. The 65 mm and 180 mm extensions have 5 mm threads; confirm connection compatibility.View part

Keep tool dimensions distinct from engine specifications

The extensions supplied with the synchronizer are 65 mm and 180 mm long, both with 5 mm threads. These are kit specifications. Honda’s synchronization page identifies the cylinder-head connection location without establishing its thread size, so confirm that match before committing to the tool.

Check the contents against the setup you plan

The package contains two gauges, a mountable bracket, hoses, damping valves and instructions as well as the extensions. The damping valves help control needle movement. Review the instructions alongside the motorcycle’s service procedure before arranging access and making any adjustments.

Common buying questions

Where do the gauges connect on the original engine?

Honda’s procedure uses adapters at the plugged cylinder-head vacuum connections. It does not direct attachment to guessed ports on the carburetor bodies. Use the model service information to identify the correct locations on your engine.

Are the 5 mm adapters a verified match for the original threads?

Their 5 mm thread specification is verified for the tool, but the original cylinder-head thread has not been established here. Compare the actual connection or obtain that specification before ordering, rather than forcing an uncertain thread match.

Why are damping valves included with the gauges?

The kit includes them to help control needle jump. Use the tool instructions to set them up. They are part of the measuring equipment, not replacement carburetor components or a cure for an underlying running problem.

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