Search results

  1. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    Thanks all for your assistance so far 👍
  2. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    He isn't an expert on this matter, it was just his thoughts on his belief on how it is working, and can be corrected if he is wrong, which is why i have turned to you for your expertise for him to be put right if he is wrong
  3. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    My friend thinks the gaskets and plate keep the water out as its on the other side keeping the two halves separate, his thoughts are water wouldn't get that side as its exhaust gas where the hole is.
  4. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

  5. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    I am in UK, we have ourselves only used it in river waters, but I dont know the history whether it was used on sea waters. I was thinking maybe try JB weld. In the UK outboard engines seem to be expensive most of the time. I am assuming there should be no hole there, so will this affect the...
  6. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    The strange thing today it fired on both cylinders although rough and wouldn't stay idling, maybe carb adjustment required on the slow running. On removing the exhaust water jacket as was leaking you can see what appears to be a hole, should any hole be there or has corrosion caused this ...
  7. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    We pulled the reed plate out and all looked good with nothing, noticeable wrong so we gave it it all a clean and re sealed it. we also took off the water exhaust jacket. You can see carbon on top cylinder and nothing on bottom and the new spark plug is as clean as we put in so we are at a...
  8. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    Thanks for you assisitance so far everyone, we will take a look at the reeds, probably tomorrow, and take some pics and get back to you further, if that doesnt seem to be the issue.
  9. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    We only used the new gaskets, float and pin , but not float valve as wouldnt fit so kept orig and fitted new welch plug , but it states its also for :- #398452 #391305 #439072 #391937 Compatible models: For Johnson evinrude 4hp, 1983-1993 For Johnson evinrude 6hp, 1984-1985 For Johnson...
  10. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    What do you think then, examin the reed valves see if it is stuck closed, you also mentioned -"Could be the bottom crankshaft seal has an issue.----Or you have crankcase. compression issues" , what tests can be done on these?
  11. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    my apologies, my friend was calling it a jet, all this time but the new one just wouldnt screw down all the way so we just kept to the orig
  12. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    Its the gold valve (ebay https://www.ebay.co.uk/itm/166838223579), the carb kit says it was for a 1982-83. The other noticeable thing my friend noticed today was fuel being spat out into the air box. The fuel pump diaphram has been changed, and there looks like a good pressure flowing on...
  13. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    We purchased a Johnson Evinrude 9.9 HP 15 HP 1974-1988 398453 Carburetor Carb Kit w/ Float on ebay (not a Johnson factory kit) the carburetor is the origional, but it is firing on the top cylinder. These reed valves how accessable are they, and are they behind the carb plate? Regarding float...
  14. M

    No fuel being drawn into lower cylinder Johnson 7.5hp

    Hi I have an old Johnson 7.5hp, which I beleive is a 1983 (J8BACTA), The engine was becoming more and more difficult to start, on inspecting the heads with a camera, we noticed water had been seaping into the top cylinder, so head was removed and the head gasket was subequently replaced, head...
Top