1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 65Get this manual

1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 65

Description of Fuel System 1The fuel pump is of the diaphragm-displacement type and is operated by changes in crankcase pressureAlternately,
fuel consumedIt controls engine speed and power output by varying the intake charge densityTo react correctly to wide range