Well your gunna need a flat feeler gauge(intake clearence is 0.06-.10 mm , exhaust clearence is 0.16-.20 mm). instructions below
1. remove your gastank
2. remove the front fender(you probably dont need to do this just to save time)
3. set the engine to top dead center(TDC)
4. then take your valve covers off
5. insert feeler guage in between the rocker arm pad and valve stem
6. if they arnt the correct clearences use a 10mm open wrench and back off the adjuster locknut.(sorry no pics)
7. use a 4mm open wrench and turn the adjuster in or out to correct clearence.
8. double check your clearences on your valves then put here back together then you should be good to go.