I bought this:
Sprocket
and planned on re-using the oem sprocket bolts, so of course I rounded one off. I am going to check with my local Yamaha dealer to see if they carry bolts but so far they don't ever seem to carry anything for my WRR.
I found these bolts listed on another thread. Can someone confirm that these are they the correct ones for the above sprocket. The above sprocket appears to take both the oem bolts and the tapered ones.
sprocket bolts