I heard marbles rattling in the engine and it just stopped.

[tommyjoebilly]

[color=#0000FF]Hi there, I bought a GZ250, 1999 for my first bike. I'm almost 50 I enjoyed riding that thing until one day, I was idling at a red light and I heard what sounded like when you pick up a penny in your vacuum cleaner. I was hoping it would "go away", but several seconds later the engine just "locked up". I put it in neutral and tried to start it, but it would not even turn over. Does this sound familiar to anyone??
I have worked on cars some and can handle a wrench, but I don't know if it's something in the engine or the transmission. I was thinking about pulling the cylinder head and cylinder off to see what I can see, as I'm guessing that that would be easier than taking apart the transmission :poke2: Or, maybe I could drain the oil and take off that plate on the side to look at the crankcase (?). Any help would be most appreciated, even guesses.