characteristics

So, I put a Trail Tech Vapor speedo/tach on the bike and set the spark rate to 1 per revolution. The user manual for the Vapor states that some bikes may fire more often above a certain rpm. This appears to be the case with my bike because above around 6K rpm the displayed revs change rather...

I have searched the net high and low, but still come up with nothing. I have a ADB mag bigbore review and I down loaded the dirtaction review also. What I really wanted to know is what the power characteristics are like for each bike. Things like is the 650 a bottom end grunt machine with no...