Zama S126A rebuild question

[Flint Mitch]

I'm rebuilding the carb on a Ms200T. I got a stens kit from my local dealer, but its slightly different than what I took out. There is an extra clear plastic piece that goes with the pump side parts. What is it, do I need it?

Old parts top right
New parts bottom left

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[av8or3]

You have a choice of “valves “ there. Probably one is good for gas with ethanol and the other isn’t. Not knowing which is which I’d probably go back with the black rubber one.

 

[Steve]

The mylar pump diaphragm does not pump as much as the neoprene one. Some carbs have to pump more fuel than others. Whichever you removed, replace with the same type.

 

[Flint Mitch]

Thanks, my gut said go with the black one, but its really supple and the old one was very stiff and crunchy like the new clear one.

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[av8or3]

Thanks, my gut said go with the black one, but its really supple and the old one was very stiff and crunchy like the new clear one.

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That’s why it no longer works . It’s lost it’s suppleness.

 

[Steve]

Thanks, my gut said go with the black one, but its really supple and the old one was very stiff and crunchy like the new clear one.

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The original black one is mylar in your carb.

The C1Q kits are know as the blue or clear diaphragm kits. They are different thicknesses for different fuel rates.

 

[Flint Mitch]

That’s why it no longer works . It’s lost it’s suppleness.

Makes sense

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