Do it yourself
Frequently asked questions about cars and motorcycles
To change the engine oil on the Derbi Terra 125, loosen the drain plug located at the bottom centre of the bike: once the plug is loosened, all the used oil can flow into a suitably positioned container. When the oil has completely drained, loosen the bolt securing the oil filter, located on the lower right side of the bike, near the corresponding footpeg. By also replacing the filter, you can then top up by pouring oil through the breather located on the lower left side of the bike.

Updated on 2 July 2026 by ScegliAuto

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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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