Just replaced the rubbers in a Zama carb for my 6401. The kit has two diaphrams; a clear/fiberish one and a black rubber one. I am assuming one is a surge diaphram and is best used on a primer bulb set-up. Which is which and what diaphram should I install. The carb had the clear diaphram when I tore it down but the IPL looks to illustrate the black rubber one.
Thanks.
Thanks.