Mercury OptiMax 250 - Page 41

DIRECT FUEL INJECTION
Page 3B-41
90-888438 JUNE 2002
Regulator Closed Regulator Open
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1-Top Cover
2-Expansion Plug
3-O-ring
4-Spring Retainer
5-Spring
6-O-ring
7-Diaphragm Seat
8-Air Rail
9-Air Passage (from Air Compressor)
10 - Fuel Return Passage (to Vapor Separator)
11 - Fuel Inlet Passage (from Electric Fuel Pump)
12 - Diaphragm Assembly
13 - Calibration Screw (Do Not Turn)