Do it yourself
Frequently asked questions about cars and motorcycles
In this video, you will see the main steps to replace the engine oil of a Derbi Senda 50cc. Before removing it, warm up the bike for a few minutes: then unscrew the oil drain bolt located at the bottom using a 14 mm socket spanner. Allow all the oil to drain into a container and wait about twenty minutes before replacing the bolt; now unscrew the upper oil cap and fill with new oil that meets the correct specifications. Finally, fill to the correct level and screw the bolt back on!

Updated on 31 March 2026 by ScegliAuto

Video tutorial

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How to adjust the valve clearance on the Moto Guzzi V85TT

Valve adjustment is very important to ensure the proper functioning of the engine; by following the appropriate instructions, it is indeed possible to adjust the valve clearance of the Moto Guzzi V85TT by yourself. First, put the motorcycle on the center stand and start by removing the cylinder head cover, unscrewing all the fixing screws; then use a feeler gauge to measure the valve clearance, adjusting it according to the instructions in the motorcycle's user manual, following the video tutorial until the end!

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