90-884294 OCTOBER 2001
Page 3A-7
Checking Fuel Pump Lift (Vacuum)
The square fuel pump is designed to lift fuel (vertically) about 60 in. (1524 mm) if there
are no other restrictions in the system using a fuel hose that is 5/16 in. (7.9 mm) minimum
diameter. As restrictions are added, such as filters, fittings, valves etc., the amount of fuel
pump lift decreases.
Fuel pump vacuum and air bubbles in the fuel supply can be checked with a vacuum
gauge, a t-fitting and a clear piece of fuel hose. Connect the clear hose between the inlet
fitting on the pulse driven fuel pump and the vacuum gauge t-fitting, keeping the t-fitting
as close as possible to the pump. Connect the fuel line from the fuel tank to the remaining
connection on the t-fitting.
59157
a
b
c
d
e
a -
Pulse Driven Fuel Pump
b -
Clear hose connected between
pulse pump and “Tee” fitting
c -
Vacuum Gauge (Digital)
d -
Tubing Clamp (91-804063)
e -
Fuel supply hose from fuel tank
Summary of Contents for 225 EFI
Page 64: ...IGNITION Page 2A 8 90 884294 OCTOBER 2001 Coil Plate Assembly...
Page 66: ...IGNITION Page 2A 10 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Page 68: ...IGNITION Page 2A 12 90 884294 OCTOBER 2001 Electrical Plate Assembly A...
Page 100: ...CHARGING STARTING SYSTEM 90 884294 OCTOBER 2001 Page 2B 9 Notes...
Page 101: ...CHARGING STARTING SYSTEM Page 2B 10 90 884294 OCTOBER 2001 Flywheel Alternator...
Page 159: ...WIRING DIAGRAMS 90 884294 OCTOBER 2001 Page 2D 9 Notes...
Page 220: ...FUEL PUMP 90 884294 OCTOBER 2001 Page 3A 3 Notes...
Page 221: ...FUEL PUMP Page 3A 4 90 884294 OCTOBER 2001 Fuel Pump Assembly A...
Page 235: ...FUEL INJECTION Page 3B 6 90 884294 OCTOBER 2001 Fuel Management System...
Page 237: ...FUEL INJECTION Page 3B 8 90 884294 OCTOBER 2001 Fuel Management System...
Page 239: ...FUEL INJECTION Page 3B 10 90 884294 OCTOBER 2001 Vapor Separator Components...
Page 293: ...OIL INJECTION 90 884294 OCTOBER 2001 Page 3C 3 Notes...
Page 294: ...OIL INJECTION Page 3C 4 90 884294 OCTOBER 2001 Oil Injection Components...
Page 317: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 5 Notes...
Page 385: ...POWERHEAD 90 884294 OCTOBER 2001 Page 4A 73 Notes...
Page 407: ...COOLING Page 4B 8 90 883728 JULY 2001 Notes...
Page 701: ...COLOR DIAGRAMS Page 8 2 90 884294 OCTOBER 2001 Notes...
Page 716: ...58847 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28...
Page 719: ...7 7 14 59162 1 17 16 2 3 4 5 6 8 8 9 1 16 12 13 14 15 10 11 11 17 1 1...