1995 Johnson Evinrude "EO" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 503151, Page 56Get this manual

1995 Johnson Evinrude "EO" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 503151, Page 56

Testing Procedure & Avoid accidental starting of engine while changing propellers; twist and remove all spark plug leadsINotel
two minutesMonitor clear vinyl hose for signs of air or vapor bubbles and note reading on vacuum gauge4The vacuum gauge reading
must not exceed inof mercury (Hg) at any timeThere should be no air or vapor bubbles visible in the clear hose If reading
is to inHg and no bubbles are present, go to Step If reading is to inHg and bubbles are present, go to Step If reading exceeds
inHg, go to Step 55If your reading exceeds inHg, you must test each boat fuel system component for excessive restriction
before continuingRefer to Boat Fuel System Recommendations, this section, for component descriptions INote Do not use fuel
primer bulb, manual fuel primer pump, or Transparent Hose Adaptors Tank End Anti-Siphon Valve Engine End 6If you suspect
the anti-siphon valve, perform these tests: Remove anti-siphon valve from fuel tank, and install adaptors and clear hose