Your Quesiton is impossible to anwer without more information. You need to add some useful information on what exactly you are asking, what model of bike? Did it run ok before? Did anything happen in the meantime? What exactly do you mean by slowly, etc.
Your Quesiton is impossible to anwer without more information. You need to add some useful information on what exactly you are asking, what model of bike? Did it run ok before? Did anything happen in the meantime? What exactly do you mean by slowly, etc.
Phil さんによる