OK, so I got the motor sproket changed this weekend. Went from a 34 to a 30 (07 model). Man, what a change! No slipping the clutch or pinging on take off, 6th gear is now usable under 60 mph! 3000rpm = about 68mph in 6th. 3400rpm is 75mph. Don't know why but it even starts smoother, usta bang...