Do it yourself
Frequently asked questions about cars and motorcycles
To service a Sym Symphony SR 150, follow all the operations shown in the video: clean the air filter with a blast of compressed air after removing the relevant cover. Next, check the correct tension of the chain, remove it, and clean the pulleys that tension it. To access the chain and pulleys, you need to remove the cover by unscrewing bolts and screws as shown in the video. Once all checks are completed, you can reassemble all previously removed parts, following the operations in reverse.

Updated on 19 April 2026 by ScegliAuto

Video tutorial

Related tutorials

Symphony 151 In this short video, see how to carry out routine maintenance by replacing the engine oil and cleaning the small oil filter on a Sym Symphony SR 150 …
Symphony 151 In this video tutorial, learn how to remove and replace the rear brake pads on a Sym Symphony 150 scooter. First, position the scooter on the centre …
Symphony 151 In this video, we will see how to remove and replace the engine air filter on a Sym Symphony S 150 scooter in simple and quick steps. First, place th…

How to Change the Speed Unit on the Piaggio Mp3

If the speed displayed on your Piaggio Mp3 is in a unit of measurement different from your preference, simply follow this mini guide to change it independently. First, start this procedure with the bike completely off. Then, press and hold the "Mode" button on the right knob for about three seconds and turn on the display. Once done, press the "Mode" button again to switch between units (from Km/h to Mph or vice versa). Finally, hold down "Set" to save the changes.

Watch the video!


by ScegliAuto

More videos