RE: Adjusting OS .46 FXI
After opening up this post I believe about a month ago I went and followed WTB's instructions and it roared into action. You just push it to full throttle then pinch the fuel line that goes into the cabureator for a few seconds and listen. If it speeds up your too rich turn high speed to the right, if it cuts out then it's too lean turn high speed needle to left. These are from WTB's instructions and I think they'll help you like it did me.
Good Luck!