Model 150 Xri/175 Xri/200 Xri Powerhead Port View - Mercury 150 EFI Service Manual

GENERAL INFORMATION

Model 150 XRI/175 XRI/200 XRI Powerhead Port View

4
3
2
31
1
30
29
1 - Fuel Pressure Test Point
2 - Fuel Out to Fuel Rail
3 - Throttle Plate Assembly
4 - Vapor Separator Vent Hose
5 - Air Temperature Sensor
6 - 60 Ampere Alternator
7 - Port Thermostat [143 F (61.7 C)]
8 - Speedometer Sensor (BLACK)
9 - Temperature Sensor (Port Head)
10 - #2 Cylinder
11 - Temperature Sender (Analog Gauge)
12 - #4 Cylinder
13 - Detonation Sensor (200 EFI Only)
14 - #6 Cylinder
15 - Oil Reservoir [0.74 qt. (0.70 Liter)]
16 - Low Oil Sensor
Page 1C-10
6
5
28
27
26
25
23
24
16
17
18
19
20
22
21
17 - Pulse Fuel Pump
18 - Pulse Pump Vacuum Hose
19 - Idle Stop Screw
20 - 4 psi (27 kPa) Check Valve
21 - Shift Interrupt Switch
22 - Filter
23 - Wide Open Throttle Stop Screw
24 - Water Sensor
25 - Fuel/Water Separator
26 - Fuel Inlet Hose to Pulse Pump
27 - Throttle Position Sensor
28 - Fuel Outlet to Fuel /Water Separator
29 - Vapor Separator Tank (VST)
30 - Electric Fuel Pump (inside Vapor Separator)
31 - Fuel Pressure Regulator
8
7
10
9
11
12
13
15
14
58780
90-883728 JULY 2001