I haven't found much on cutting off emissions on the 99WR400 - just the 2000+, which I used to have & don't remember what I had to do. I've searched on here and none of it seems to match what I'm seeing. I have an alloy pin, not a white plastic one as I've read. I can't flip it around and get the cover on, which I've also read. I have a 100PAJ ready to go. I have pics & will try to figure out how to post them.