Mercury OptiMax 250 - Page 47

DIRECT FUEL INJECTION
Page 3B-47
90-888438 JUNE 2002
Engine Off (No Pressure) Engine at Operating Pressures
1
2
3
4
5
6
7
8
1
2
3
4
5
6
8
9
9
1
2 3
4
5
6
7
8
9
1
2
3
4
5
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7
8
9
1-Top Cover
2-Spring Retainer (not shown)
3-Spring
4-O-ring
5-Diaphragm (at rest) Seat
6-Air Rail
7-Air Passage (from Air Compressor)
8-Fuel Inlet Passage (from Electric
Fuel Pump)
9-Diaphragm Assembly