Yesterday I used Opt-2 for the first time. Unfortunately, I was having fuel delivery issues. The engine died several times over the last two days. When I reached home, I replaced my FRAM automotive fuel filter(huge) with a Happy Time fuel filter. Gas flowed freely thru the SBP petcock and hose. The Tanaka 47R engine's carb was reset to stock settings.
Today, the bike performed with excellence. However, the engine has starting problems. I need to work on that.
I am loving my super-low gears. First is 46.32:1, second is 39.55:1. Seventh gear is 17.72:1 and eighth gear is 15:1. Low and high gears are all usable.