OK to make a long story short, I am considering buying a Z with a Kawi engine on it. Problem is, it does NOT have an engine HP sticker on it. It is a 531 V. In all the info I have found, this engine is rated anywhere between 17-21hp. But the specs are all the same. This includes that it also matches the new model #'s like 601 V, 641 V , & 680 V. That includes up to 23 HP now. Specs 675cc / 41.2 ci 17, 18, 19, 21, 23 HP Help me! All I have done is confuse myself. I am just trying to make sure I'm not getting jerked around here. I'd hate to think of buying it thinking it was like a 21 or something only to find out in the spring growth that it's only a 17. Can anyone lend any info that might help me to identify what HP this engine is? THANKS A LOT!