Motor locked up. I took the top half off and the cylinder looks to be in ok shape. I fill i can get it bored over a little to remove the scratches.I did find metal in my exaust!!!!!!! The connecting rod is locked up on the crank. Havent taken out the crank yet, not real sure how to do it. I could figure it out eventualy but i also figure that i could save a lot of time if some one could give me some tips on how to do it the correct way, with out me taking things off, that i dont need to. When this kinda of mechanical failure happens, what else usualy tears up.