Helping a friend = Too many fines and not enough money

A insured a motor bike for B, who signed it over to A. Since then, A has gotten close to $1000 in photo radar tickets.

After multiple attempts to stop B from speeding, A cancelled the insurance. After A received 2 more tickets, A took the license plate and told B that A needs the tickets paid.

B won’t pay, so A said he would sell the bike to cover it. Now hypothetically it’s not A’s bike, but A is the registered owner of it. (Because B now has insurance from a different company, A assumes B forged A’s signature.)

Can B do that? What legal options does A have? A cannot afford the tickets and doesn’t want any marks against him for whatever could happen license wise. (A only has a learners class 7 and is worried that it will affect his drivers class 5.)