A buddy of mine just stopped by. He brought his AK out to pop off a few rounds. It is a standard Romanian AK47 semi auto only. He purchased this gun last year, and has never fired it, or messed with it at all. He popped off a few rounds, then a problem arose. Every so often, when you shoot, it will burst off 2-4 rounds. My guess is it is slam firing. Do you suppose the bolt is caked with crud, causing the firing pin to protrude? My other thought is cosmoline caked inside. He left here and was taking it to a smith. Any thoughts or ideas?