I am considering buying a rock-stock 1998 WR 400 with less than 6 hours on the motor, or so the owner claims. He wants a thousand and a half dollars more than book value to start, or OBO. The bike has no visible defects, but it won't start - the start circuit / pilot jet may be varished shut (after all these years). And while his claim (6 hours) may be true, should not the book value, as excellent stock condition, really be the start price instead? I mean, the motor may have only 6 hours on it in 10 years, great. But the cost of rebuilding the carb, and possibly the engine/fork seals, from lack of use, may cost in the end as much as the difference he is asking for between book and start price! Should I offer book value, less the cost of a carb rebuild, and walk?