Mercury 200 OptiMax Jet Drive, Service Manual, Page: 165 / 391

Direct Fuel Injection
Page 3B-2 90-8M0050731 MAY 2011
Air Compressor Specifications
Air Compressor Specifications
Air compressor type
Reciprocating piston
Single cylinder, oil lubricated, water‑cooled
Air compressor output 655 ± 14 kPa (95 ± 2 psi)
Displacement 116 cc (7.07 cid)
Cylinder bore 65.0 mm (2.559 in.)
Cylinder bore taper (maximum) 0.025 mm (0.001 in.)
Cylinder bore out of round (maximum) 0.025 mm (0.001 in.)
Cylinder bore type Cast iron
Stroke 34.9 mm (1.374 in.)
Piston type Aluminum
Piston diameter 64.97 ± 0.010 mm (2.5578 ± 0.0004 in.)
Ring end gap
Top ring
0.15–0.25 mm (0.006–0.0010 in.)
Middle ring 0.15–0.25 mm (0.006–0.0010 in.)
Bottom ring 0.10–0.35 mm (0.004–0.014 in.)
Reed stand open (maximum) 0.25 mm (0.0010 in.)
Fuel System Specifications
Fuel Lift Pump Specifications
Fuel lift pump pressure at idle
Normal
6.9–13.8 kPa (1–2 psi)
Maximum 69 kPa (10 psi)
Fuel lift pump amps 1–2 A
Low‑Pressure Boost Pump Specifications
Low‑pressure boost pump pressure at idle 41–62 kPa (6–9 psi)
Low‑pressure boost pump amps 1–2 A
Fuel System Specifications
High‑pressure fuel pump pressure 751.5 ± 14 kPa (109 ± 2 psi)
Air pressure 655 ± 14 kPa (95 ± 2 psi)
Fuel/air differential 103.5 kPa (15 psi)
High‑pressure fuel pump amp 10–14 A
High‑pressure fuel pump ohm resistance 1.0–1.8 Ω
Fuel injector ohm resistance 1.8 ± 0.1 Ω
Direct injector ohm resistance 1.3 ± 0.3 Ω