Hey 2Smoke,
Yes it is possible. We use a 16T front sprocket meant for the NS400R.
If I remember correct you will have to plate grind it and have a spacer turned for the side. Running 520 pitch of-course.
If you aren't up for the job, I may have one or two new/slightly used ones which I can sell.
Also remember you will most probably have to change your chain for a longer one.
Cheers
Mario
P.s PM me if you want to buy the sprocket.