[ventoman]

My super high mileage Tao Tao had developed a crack in the air box. That resulted in a instant bog after part throttle. So I put on uni filter. Still a giant bog of course. After making my carb untamper proof,I discovered it had a 72 main jet. Pretty lean even with stock air box. I put in a 80 main jet and all is well. Luckly my pilot jet is fine. It is worth repeating that if installing a high flow air filter or exhaust that rejetting is required. The tamper proof carbs can be made untamper proof with a small amount of effort.