I´ve recently bought my first "real" bike... a ´94 VFR 750F. I love it so far, but have noticed that my left hand gets very tired/sore after riding for only 20 minutes or so. When I started comparing it to other bikes, I realized that the clutch lever is much harder to pull on than most other bikes I´ve ridden. I don´t think it´s a maintainance issue, but could it be an anjustment or a custom part???