Fuel and Air Upgrade Fix for GY6 50 scooters using the 139QMB engine. This one is for 49cc four stroke
We have added fule valve or petcock valve to this kit to get a complete fuel and air delivery upgrade or repair, this kit will fix many problems for getting the correct amount of fuel and air to carb
Fuel and Air Delivery Kit
Uni Filter Air Filter
95 Jet
Three Feet of Clear Line Air or Gas
Standard Gas Filter
Fuel Valve, bolts to bottom of gas tank
If you need a different valve let us know in comments at check out.
Use this kit when doing upgrades or fixing a poor running scooter.
Scootertronics has found that after some time or maybe even when you first get your scooter and just want the best delivery of fuel and air to your carb and engine. By adding better quality fuel and air line plus larger jet and a Uni Filter along with new gas filter if needed your scooter will get the needed gas and air.
To get the best performance from your scooter you fuel and delivery should be straight forward and easy and could just get that poor running scooter to run at a some pace. We have found in our shop and listening to our customers that the chinese scooters do not have great fuel and air line and air hose for vacum sometimes collapsing while running at top speeds, mid tempo speeds and low speeds so adding quality hose and air line plus replacing air filter, gas filter and jet a lot can be corrected easily.