Is engine knocking nothing to worry about?

Sorry to tell you this. The engine is not knoking for nothing. You should geting ready to dig deep into your pocket. The faster you get the vehicle into the shop the better off you will be. If it a pipton pin. I will sooner or later let go and do all kind of damage to cycle wall. Or go through the side of the block. It can even damage cranshaft. If it on the other end. It mean you have a loose rod. The crankshaft is being damage. It can let go and do the same amount of damage and more. You can ride with it. It a time bom really to go off. You can have it repaired. Or you can try to find a use motor. There is nothing you can add to the engine now to help.