If you need to do maintenance on your Honda SH300i then it is always a great idea to own a Workshop Manual to keep just for personal reference in the event that you want to know the best way to remove a particular component including Wheel and fit it again perfectly.
Honda SH300i Workshop Manuals can provide specific diagnostic guidelines for your automobile so if something is faulty it will help you determine what the issue is and ways to repair it. Then you are able to decide if this can be done by yourself or in the event the job is just too big it is possible to book your SH300i into a trusted repair garage.
Honda SH300i manual