okay... so i just bought a motor to a 2001 blaster that needs to be bored because of scores in the cylinder and it has a small hole in crank case. and i have a problem i cant get the damn top end nuts off to take off the jug! is there any easy way to do this? i put screw loose on them tapped them let them sit and then used the correct sized wrench and turned them and nothing it just pops off of the nut. on all 4! i dont get it!