Synchronize Carburetors on Small Honda Fours

Reader Contribution by The Motorcycle Classics Staff
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Carburetor synchronizing is something many owners prefer to avoid. Chalk it up to a fear of undue complexity or just plain getting it wrong, it’s a job otherwise capable weekend mechanics typically decide to turn over to more experienced hands. That’s certainly a wise move if you’re mechanically challenged. But if you can confidently tune your bike — adjusting the valves and setting points and timing — then you can probably handle a carb synch.

The point of synchronizing is to make sure each carburetor is pulling exactly the same amount of air, so that each cylinder is filling the same. Importantly, tuning your bike is the first step in a carb synch, because if the valves aren’t set correctly and the ignition timing is off, trying to synchronize carburetors usually makes a bad situation worse by masking other problems with carb adjustments.

Motorcycle Classics Magazine
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