Quote:
Originally Posted by Cloggsy
colour's a good indicator  What colour is it 
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Not a terribly good indicator, since blue exists in K3 and K4
Basically, what Dr Rich said is the quickest way, look just in front of the back wheel but behind the shock, if there is a monstrous plastic box thing which turns out to have a toolkit in it, then it's a K4, otherwise it's a K3.
Of course, having an S rather than Suzuki on the tank is also a quick one.