Macleod

Most of the Gas runners here where I run, use the WT257 carby with no primer.

Few that do use the WT644 with primer, run the return line in/out of the hull or back into the bag or tank. Some block it off.

I got rid of the WT644 at the bench test stage (Photo 1). The primer return made things messy with the primer excess fuel going into the hull or out onto the ground.

I have had great results with the WT257 (Photo 2) that I run now. My Zen starts every time.