Most definitely. I have only had two bikes:
1987 GPX 250
1991 VFR 400
Last time I buy a bike pre 2000! Previous owners do all sorts of weird shit to bikes so the less owners the better.
Yeah it's scarey what people will do to a bike! My R1 was a bone stock 2005, had one owner before me and he only put 2000 km and an alpinestars sticker on it. Other than that it was untouched when I bought it. I rode it for about 10,000 km, did nothing to it other than tires and oil, then sold it after a large speeding ticket (under Ontario's "stunt" driving law).
Fast forward a few years and a buddy at work calls me up and says "did you used to own an R1?" Turns out he bought it some 3 owners later, and he saw my name on the previous owners list. I saw pictures of it and it was all riced out. My guess is somebody dropped it and decided to repaint it flat black el cheapo when they repaired it. Cheap little turn signals, etc. It's too bad because the thing was gorgeous when I owned it!
Here was the R1 a few days after I bought it...
Here's the FZ6 as it was brand new...
And after I crashed her and decided to repaint black (myself) I also embedded some yamaha logos under the clear coat... I think it was a reasonable non-butcher job! lol