I don't know of anywhere to get the diagram on the net other than buying a OEM manual or Haynes Manual. If you plan on doing work DIY, it is a well worth while investment. I have the OEM others have the Haynes and others have both. If the budget is tight, the Haynes is a lower price and can be purchased here: New Speedmaster

BA has Freak, 160mains, 44pilots, air mix3 1/2 to 4 turns, BUBS dresser dogs. Never had more fun on any bike - 2nd bike 2008 RIIIT