If you are home and in your garage can the repo man come inside to try a motorcycle even if tell him no?

No, the repo man cannot come inside your home or garage to try to repossess a motorcycle or any other property without a court order. In most jurisdictions, the repo man must have a court order or a security agreement that specifically allows them to enter your property to repossess the motorcycle. If the repo man attempts to enter your property without a court order or valid security agreement, you may call the police and report it as trespassing.