Hey, Just a quick question, I spoke to the mechanic, apparently my bike has a busted CDI unit. This is news to me, I didn't even know it had a CDI box, or what one is for that matter. But then again, what i don't know about bikes could fill a library. Can somone give us an idiots guide as to what a CDI box is, roughly how much a new one will cost (or second hand)? (CB250 by the way, red.) I know now its the reason neither of my spark plugs were working, and why it wasn't starting which is good. Hopefully i can get out of this cheap, damn being a poor student. Cheers, drew.