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Old 01-16-2010 | 11:26 AM
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tkg
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From: Riverton, WY
Default RE: SMALL DISPLACEMENT FOUR STROKE GLOW TO GAS CONVERSION

ORIGINAL: Evert1969

I have just received a ZAMA C1Q P8 ( 6,5mm venturi) carb wich i want to mount on my Saito FA80.
This carburettor two external brass tubes. I suppose the thick one is the fuel line but i don't know what the other tube is used for.
This straight brass tube is located next to the low needle. Also this carb has small hole above the intake valve at the flange side. I suppose it is a pulse hole but i don't know wether it is a pulse from the carter or from the intake manifold.
Can someone help me with answering the Questions:
1. what is this brass tube used for
2. What is the small hole for?
3. do i have to use both connections and where should i connect them to
I think that the smaller fitting is for a fuel return line when the engine has a primer buld. If you don't have a primer bulb then solider the fitting closed. or use a short piece of fuel line that is plugged with something.
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