Diaphram carb.


Old 07-14-02, 08:50 PM
J A Boggan
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Question Diaphram carb.

Are these small Walbro or Zama diaphram carburators just finicky to rebuild or what? I like to rebuild a carburator and have it to work! But on these small carburators, my batting average is pretty low. Can anyone give me some ideas or tips. I have been told that you needed to keep the area in which you rebuild them almost "operating room clean".
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Old 07-14-02, 09:02 PM
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Cleanliness is imporatnt. Also, the ports and holes in these carbs can get clogged and are sometimes very hard to clear out. I use about 100 psi compressed air with a rubber tipped nozzle to clean them out. Blow it through every passage you can find. Use carb cleaner too, and replace all gaskets and diaphragms. Also, on 2 strokes, there are many other problems that can create symptoms of a bad carb. Like restricted in-tank filters, gas caps, crankcase ports, exhaust, fuel lines, check valves in the primer assy. and worn rings.

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