Horsepower figures are next to useless... most manufacturers fudge this a bit on their sales brochures...
Plus truthfully, if you don't use the same dyno you can't compare one machine to the other. And I'd imagine that would be worse comparing dynos built in 1950 versus dynos built in 2009.
To add to the problem, two exact same machines from the same manufacturer, even with sequential serial numbers could have horsepower figures significantly different from one another.
The real question is, what difference does it make what the number is? It matters how you like the bike and if it makes enough power for you to ride the way you want to.
Most of these horsepower "discussions" come across more like, "my dad can kick your dad's ass" feel to them.
The next question I have is how many of you have actually put any machine you owned on a dyno? I can tell you how many I have..... ZERO. So I don't feel qualified to mention horsepower numbers.
I just don't want you guys getting all worked up or upset with one another because of horsepower figures.
And just so you know my bike puts out 79 horsepower... not bad for a 125 two stroke!