Please try to keep only one thread running on the same problems. I have deleted the other two duplicate subject threads.
In your other threads, you also now add that you have a broken piston and bent spark plug electrodes. As stated in the other replies, you either had in the wrong plugs OR have too much cam lift for the pistons and they hit! A tear down is now in order to access the damage to ALL pistons, (most likely cracked) and to have a good shop check the bore in the cylinder with the broken piston and to check the rods for straightness.