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Evinrude 250220507 Carburator Settings and Fuel Tank

"I saw a conversation string w

"I saw a conversation string where you say, for a 1956 40HP that the top adjustable needle valve is for the slow speed (idle) adjustment and the bottom is for the high speed adjustment, as well as explaining how to adjust. Does this hold true for the 30HP I have?

I read that I need to have a pressurized tank. OK. But while I am testing this, can I not hang my can higher than the motor and have gravity do the work?

Is there any special tank or line that I need?

How does the air feed line work?

Thank You
Robert Lang [email protected]"
 
The air is put into the tank

The air is put into the tank from crankcase compression.Any fuel can higher than the motor can be used to test.
 
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