Here are the evolutionary changes. Very minor.
2003 (K3) Added fork pre-load adjusters. Alternator output increased from 350 watts to 400 watts. New clutch slave cylinder dust cover, later production models.
2004 (K4) Redesigned instrument cluster. Upgrade 16-bit to 32-bit ECU, some sensors changed. New turn signals, 20 watt without reflector compared with earlier 10 watt. Belly pan redesigned. Stronger hand guards are attached to the end of the handlebar. New adjustable windscreen design. The left handlebar switch incorporates flash-to-pass & emergency blinkers (EU models already had this). Stronger handlebars. Revised mirrors for less mirror breakage.
2005 (K5) Silver frame revised to the black frame. Black rear frame covers vs previously fairing colour. New quiet clutch cover. Headlight interrupts when starting.
2007 (K7) New clear turn signal lenses and new swingarm pivot covers.
2003 (K3) Added fork pre-load adjusters. Alternator output increased from 350 watts to 400 watts. New clutch slave cylinder dust cover, later production models.
2004 (K4) Redesigned instrument cluster. Upgrade 16-bit to 32-bit ECU, some sensors changed. New turn signals, 20 watt without reflector compared with earlier 10 watt. Belly pan redesigned. Stronger hand guards are attached to the end of the handlebar. New adjustable windscreen design. The left handlebar switch incorporates flash-to-pass & emergency blinkers (EU models already had this). Stronger handlebars. Revised mirrors for less mirror breakage.
2005 (K5) Silver frame revised to the black frame. Black rear frame covers vs previously fairing colour. New quiet clutch cover. Headlight interrupts when starting.
2007 (K7) New clear turn signal lenses and new swingarm pivot covers.
