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90-WME-62 carb threaded hole empty?

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pyrodenis

Member
Can anyone tell me if the threaded hole next to the Idle Needle in the 90-WME-62 is supposed to be empty? Or, is it suppose to be closed with a set screw or something? It seems that when the engine is in the tilted up position, I get fuel leaking.
THanks,
Denis
 
Last edited:
pyrodenis said:
Can anyone tell me if the threaded hole next to the Idle Needle in the 90-WME-62 is supposed to be empty? Or, is it suppose to be closed with a set screw or something? It seems that when the engine is in the tilted up position, I get fuel leaking.
THanks,
Denis
Click to expand...

So, to refine my question, it is a vent hole. But is there a reason it's threaded, if nothing goes in it?
Denis
 
They used to have jets in those threaded holes , BUT with certain weather conditions they would ice up.
The factory just left them out (some reason still carried on threading the holes) ? I saw a mercury bulletin 20 odd years back.
 
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