[tsuintx]

When you say...

It is going near end....

..., do you mean it's slipping? Otherwise there really isn't need to change it, just as a preventative measure. My bike has 106K miles (roughly 170K km) on the original clutch with no issues.

If you haven't downloaded the K1600 Service Manual pdf that is available, you might want to do so. Clutch replacement is described starting from page 224 onwards.

Hopefully you find the info you are looking for in case you actually decide to go for it. The community would also benefit from you posting info afterwards as to how you did it.