If you wish to do fixes on your Sym Jet 2 then it is always a good idea to have a Workshop Manual for a reference if you want to know tips on how to strip off a certain component much like the Dashboard and fit it again in the correct way.
Sym Jet 2 Workshop Manuals provide you with specific diagnostic guidelines with regards to your car so if something is playing up it will help you figure out what the issue is and easy methods to make it better. You can then determine if you can do this yourself or in case the job is simply too big you could book your Jet 2 right into a nearby repair garage.
Sym Jet 2 manual