Turbobike Web Site www.Turborick.com
Doug, Three things are necessary. #1 O2 sensor, one wire type if mounted near port, 3 wire type if more than 16 inches from port. #2 low cost digital multimeter, taped on handlebar. #3 some sort of chart to relate voltage to mixture. Works while driving, and readings are up dated many times a second. I have article at home that I will scan and email. It works great, shows when you are hitting that flat spot and gives an idea what the best fix. I have installed on two of by bikes. Bill