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Crosbyman replied to the thread 1976 Evinrude 9.9.

2 man job.... one pulls one feels you have no options but to confirm pulses or not because buying an expensive OEM square pump will not...

Yesterday at 9:39 PM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

ok first things is never give up...when reassembling these pumps mounting a few critical parts properly helps the reassembly ... mainly...
Yesterday at 6:38 PM
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Crosbyman replied to the thread HELP - Mercury Motor Won’t Start - Carburetor is suspect.

how does one confuse Mercury with OMC products ?

Yesterday at 6:13 AM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

if not a pump issue cc pulsing may be weak due to a crankcase sealing problem ...if reeds are ok a volume flow test will confirm...

Monday at 7:17 AM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

if it worked with gravity feed ! the pump is not doing its job cyl comp. does not concern the fuel pump it runs on crankcase...

Sunday at 9:25 AM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

based on AI ... say (1.5g/hr x 128 ounces / 60 minutes) x 3 running minutes shoud produce the 9.6 ounces of fuel at low pressure AI...

Friday at 7:03 AM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

tricky thing here the engine works fine and the fuel hose is brand new so it seems doubtful a gray line would have self destroyed...
Friday at 6:06 AM
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Crosbyman replied to the thread 1976 Evinrude 9.9.

does it die idling or at wot.... remove the pump confirm that you feel a good pulse out of the pulse port .. if you do them recheck...

Jul 2, 2026
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Crosbyman replied to the thread Model Tag - Protection.

scribe the info..mdl and serial # inside the housing with a dremel tool

Jul 2, 2026
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Crosbyman replied to the thread 1976 Evinrude 9.9.

the engine needs fuel..and when you are supplying it manually it runs so one assumes hoses are ok, few items to check... make certain...

Jul 2, 2026
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Crosbyman replied to the thread 1987 Johnson 70Hp 2 stroke.

when were carbs serviced last ?? old style carbs easy to clean up

Jul 1, 2026
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Crosbyman replied to the thread Core Plug (307588) Fell Out, Reuse w/ JB Weld or Replace? - 1985 Evinrude 4HP.

you could try to tap it lightly on the end to fatten up the diameter and drive it back in you could run a (greased up ) tap in...

Jul 1, 2026
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Crosbyman replied to the thread Unrealistic expectations for 71 20hp johnson?.

yes
Jul 1, 2026
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Crosbyman replied to the thread 1987 Johnson 70Hp 2 stroke.

starting involves proper choking when cold or dormant for hrs... carbs must be 100% clean especically low speed cct. check fuel pump...

Jul 1, 2026
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Crosbyman replied to the thread Unrealistic expectations for 71 20hp johnson?.

check recirculation hose if you have one or oil purge valve if you have one on this engine.

Jul 1, 2026