If you have to execute auto repairs to your Kymco Spike then it will always be a good idea to own a Workshop Manual for a guide if you need to know easy methods to remove a specific component like the Gearbox and install it again in the correct way.
Kymco Spike Workshop Manuals can offer you specific diagnostic guidelines with regards to your car therefore if something is faulty it helps you determine what the problem is and some ways to repair it. You will be able to decide if this can be achieved on your own or that the job is too big you can book your Spike in to a trusted car garage.
Kymco Spike manual