Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
This guide shows how to perform the maximum carburetion adjustment on the engine of the Piaggio Vespa 50 Special, as well as the Vespa 125 Primavera. First, start the engine and fully screw in the carburetion screw located on the side of the carburettor, waiting for the engine to stall; then, unscrew it by about one to one and a half turns, as shown in the video. From this base setting, further adjust as necessary by acting on the carburettor jets; finally, set the engine idle!

Updated on 5 June 2026 by ScegliAuto

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