Shanghai jian & mei is a pofessional manufacturer of high strength bolts more than 8 years.They are include: Heavy Hex Structural Bolts, Heavy Hex Nuts, F436 Flat Washers, U-Bolts, Weld Stud with Ceramic Ferrule, etc
For additional tuning and adjusting, such as changing metering rods and jets, this video will guide you to make sure your carburetor performs as expected.