Found a 1987 Tecate 4, been sitting in a garage since the mid 90's. The guy bought it new, rarely used it. He let a friend borrow it, he didn't mix the gas and screwed the piston. The cylinder is fine, doesn't need redone, and still has very deep cross hatches. But it needs crank and rod bearings from sitting so long. For me to do the work is no problem, I work on motorcycle engines all the time, I have a small side business going, actually trying to get a full time business out of it. Its 100% original, the headlight still even pops up like its supposed to, and the tires are original and probably 90% tread. He's asking $650 for it. Is it worth it?