Okay, we'll start with the lower cowlings first.
There are a total of 3 brackets 11045, 11045A, & 11045B diagram below. Part # 11045-1861, 11045-1864, 11045-1865
The upper cowling only has 1, 11046 diagram below.Part # 11046-1289
Be careful when getting the upper bracket used, these have be known to break at some of the welds, and it also gets bent if the bike has been down, and/or dropped. So be sure if your buying one used, to check it out very carefully, if it's bent, broken or has been fixed, pass and keep looking elsewhere for another.
This piece is key because if it's bent the cowling won't line up properly and also the mirrors, and instrument also attach to the bracket, and everything will be out of wack.