Choke Knob BST40 Installation

Submitted by Lora Baughn on Thu, 10/24/2019 - 10:46
Picture of where to file.

If you are installing this on the stock BST40 you need to file a bit off the idle stop where the red line is. Before you put the choke in, file about 1/16" off the backside of that tab so you can get full throttle. The throttle is twisted open in this picture.