1995 Johnson/Evinrude Outboards 125-300 90 degree LV Service Manual, Page 84Get this manual

1995 Johnson/Evinrude Outboards 125-300 90 degree LV Service Manual, Page 84

5If your reading exceeds inHg, you must test each boat fuel system component for excessive restriction before continuingRefer
throttle If bubbles appear, test in-line fuel filter If no bubbles appear, go to Step 99If no bubbles appeared in Step 8,
move the clear hose to the output side of the fuel distributlon manifold Start engine and run it at full throttle If air
bubbles appear, test vacuum switchRefer to Vacuum Switch Servicing, this section10If no bubbles appeared in Step 9, remove
the clear hose and install 0-15 PSI (0-103 kPa) fuel pressure gauge between pump and carburetorsvaeliminate the fuel bypass
valve from the fuel distribution system while performing system fuel pressure test11Start engine and run it at 800 RPM, in
gearAfter fuel pressure stabilizes, the pressure gauge must not indicate less than PSI (21 kPa) when held level with VRO
hose fitting If pressure is less than PSI (21 kPa), test pulse hose and crankcase fittingRefer to VRO Component Servicing,
this section If pulse hose and crankcase fitting are good and pressure is less than PSI (21 kPa), replace pump - " Adaptors