If you want to undertake auto repairs for your Diamo Storm 300 then it will always be recommended to have a Workshop Manual for personal reference should you need to know tips on how to strip off a particular part much like the Wheel Bearing and fit it again adequately.
Diamo Storm 300 Workshop Manuals can provide detailed diagnostic information for the vehicle therefore if something is faulty it will help you identify what the problem is and the best way to fix it. Then you are able to determine if this can be done yourself or if ever the job is too big you are able to make a reservation for your Storm 300 in to a decent repair garage.
Diamo Storm 300 manual