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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. or check with a vacum -pressure meter on the pulse port

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 pressure build up when the piston downstrokes. Do the flow test suggested above fill the bowl.... pull the carb inlet hose..... and run 2-3 minutes ... measure...

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 said.... A mechanical fuel pump on a 1976 9.9 HP outboard (whether it's an Johnson or Evinrude two-stroke) doesn't produce much pressure, but it does produce...

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 itself so fast. the carb is not being replenished by the fuel pump . one test would be to actually measue the volume of fuel pumped towards the carb inlet WHILE...

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 your pump reassembly if it only dies idling recheck carb low speed circuit and & drip chamber under top welch plug if never inspected lift fuel supply...

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

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 tank venting is ok disconnect carb inlet fuel hose and crank the engine to confirm fuel spits out the hose to confirm the pump is or is not ok sucking fuel...

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

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 the hole and close it up with a bolt and blue lock-tite

yes

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

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

Only had it a few years like a lot of things I should have kept it. Pushed it with a Merc 50 with surprising results. Came with 2 bunks, toilet (overboard !!) wash basin with overhead water tank... ( the owner who sold it to me is the one who had good memories... ! I think he married...

don't know about the 20hp capabilities but Crosby boats were great ! here is a Cruisette good for 90hp ...Sold it it years ago and now rotting in the guy's yard ...sniff sniff guess where my avatar came from ! visit fiberglassics.com library...

suggest you download that free 450 page + bible to provide all the info you need or try Cheap outboard in kindle format. covers your 5.5hp

fyi... see manual if you don't have it https://drive.google.com/drive/folders/1-pyBmXzRaZ16y9sJ1QkSfjnBGwA-HzsB

is this it ? #66 or....60 AI info... look for a small nipple or one with a broken piece of tubing On a 1995 90 HP Evinrude (3-cylinder crossflow carbureted engine), the balance tube drain hose #66 is a small but important part of the intake system. The balance tube connects the...

you may as well do all the servicing before the paint. sse the JOhnson bible good for your Evinrude to being cousins and all. https://www.socalaomci.com/library/johnson_service_manual_10th_edition.pdf impeller requires power head removal probably needs new coils condensers a points clean up...

all true and no mecanic wants to touch them in lots of regions orsimply do not know how to fix them...

engine mdl #