What you have to do is take your seat and tank of your bike then the valve and cam cover next you you find top dead centre be carefull make sure your not 180 out next lossen the cam chain take the cams out, use a telescopic magnet and pull the buckets on top of the valve springs out of there cups.
Be carefull as the shim sticks to the underside of the bucket and you dont want to drop it into the engine ,There is a number writen on the shim which is the thickness of the shim next you have to calculate what size shim you go to give you the correct clearance remembering the shim to replace is thinner cause the valve is cupping into the head.
In other words if you have zero clearance on the one intake you will need a shim roughley .008 to .009 thinner o get your clearence back
Also i know the owners manual says .006 for the intakes set all your valves the same as the exhaust unless you race you wont notice the difference in power dont believe me try it here is a plus you get more ride time between shimming
So take your time remember where the buckets came out put them back in on the same valve dont swap them around and if you have a owners manual it has a good detailed diagram for when you put the cams back in and set the timming