Review on Glixal GY6 49cc 50cc 80cc 100cc CVK Carburetor Carb Main Jet 139QMB 139QMA Set of 10 - Size #78, #80, #85, #87, #88, #90, #92, #94, #96, #98 by Brent Cole

This kit is what you need to replace the jet in a GY6 carburetor on a moped. I have used #78 nozzle and #80 nozzle on two different TaoTao 50cc mopeds. cm at 4500 ft and both performed significantly better than the smaller factory sized jets. If your moped is sluggish and only accelerates when you keep stepping on the gas pedal, this is most likely what you need. You may need to experiment with different sizes to get the perfect fuel mix, but all the sizes you're likely to need are included in the kit.