Nothing will happen to a person if they hid a motorcycle that is being repossessed. Eventually, the company that is trying to repossess will either give up or find you. They will use all tools at their disposal depending how much is owed at the time.
The ticket remains the responsibility of the person who had the licence plates registered to them at the time the ticket was issued.
You should contact the lender and try to work out a payment plan. Lenders will use repossession only as a last resort, so there is a good chance you can get something worked out.
The owner of the car (person(s)) who took the loan on the car are responsible
After a repossession, you will need to pay a fine usually. For example, if this was a car being repossessed, you would have to pay a certain amount to get it back.
The only person it affects is the person the item is being repossessed from. Unless, one of the family members is a co-signer on a loan of the repossessed item. Then, they can bear the responsibility of repaying the loan and it will show on their credit report as well. I'm not aware of what is being repossessed, but the implications of repossessions may affect others...just not financially, unless taxes are involved (like a home).
How do I put in being on the motorcycle
Unless you really trust his driving, don't. I don't know if it's possible to drive a motorcycle while being 'done', but I suppose anything's possible.
No
Yes it can.
Generally speaking, no.
Sure
Yes