Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
Use a vacuum gauge to adjust the carburettor cylinders. Unscrew one screw on each side of your motorcycle's carburettor and insert a hole screw (to allow air to pass) into the now free holes. If one side on the vacuum gauge goes higher, it means the carburation is not balanced. Start the engine and adjust the carburation using the designated air screws indicated in the video. As you work on these screws, you will notice on the vacuum gauge whether the adjustment is balancing or, conversely, worsening. This operation will optimally regulate the intake of air and petrol into the valves.

Updated on 29 March 2026 by ScegliAuto

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