I just wanted to give people a heads up when ordering levers from ASV. I ordered their F3 levers for my 2016 WR450F. The clutch lever works fine and is no issue.
For the brake lever, they list part # BHF30-R for 04-16 WR450F. This lever does not fit. I will post an image below showing it, but basically the little stud that goes between the master cylinder and the lever will not fit the hole on the ASV lever. It is not even close.
I looked up the parts for a 2016 YZ450F vs a WR450F on the OEM part finder and found that they are identical for the front brake master cyliner and perch. ASV has part # BHF313 listed for 2010-2016 YZ450F on their fitment guide.
I sent them an email and am hoping they will just swap them out, but wanted to let others know so they don't order the wrong thing. I will update this when I hear back from ASV and can confirm this is all correct.
Here is a pic.