Recent content by lofud

  1. L

    1987 johnson v4 110 cyl 4 not running

    I still don't know why it's not working. But I got a phone call today from the boat mechanic. He had a cancellation so I took mine in. So I guess I'll have a answer soon
  2. L

    1987 johnson v4 110 cyl 4 not running

    is there test i can do to check the crankshaft seal? or is it time to take out the motor?
  3. L

    1987 johnson v4 110 cyl 4 not running

    I read on another forum (but now can't find it) about a seal or something along the lines of a rear/front main seal on the bottom of the motor that could leak and let air into cyl 4. So the motor would need to come out for this. Is this something it could be?
  4. L

    1987 johnson v4 110 cyl 4 not running

    Yes I measured spark. I got out to 14mm or 15mm before it stopped working. Both carbs have been taken off and completely apart and cleaned. Also I swapped the top carb with the bottom carb and the problem stayed in the same place so that leads me to believe it's not carb related.
  5. L

    1987 johnson v4 110 cyl 4 not running

    I replaced the (working) vro pump with a standard pump while trying to figure out this problem. So it's a new pump but I had the same problem with both pumps. I have also pulled the new one apart as someone else suggested to check the diaphragm so I'm confident it's not that. While doing a link...
  6. L

    1987 johnson v4 110 cyl 4 not running

    Hi, I have been through the link and sync procedure a few times with no success. Also tried swapping the carbs from top to bottom with no difference.
  7. L

    1987 johnson v4 110 cyl 4 not running

    Hi. I didn't think about there being 4 separate crank cases. (To used to 4 stroke world) so where I applied the pressure it wouldn't have got to cyl 4. I did that's to check for leaks from the reeds which I haven't now taken out checked,cleaned and swapped with cyl 3. But the problem still...
  8. L

    1987 johnson v4 110 cyl 4 not running

    Thanks for th input. what I should have said is that I replaced the vro while this was happening as I figured while I'm doing engine things I might aswell do that do, so it was doing this before and after. and yes the blue wires are in top. cyl 1,2,3 all run great and if you remove any of those...
  9. L

    1987 johnson v4 110 cyl 4 not running

    Hi. 1987 v4 110hp Not totally sure of the model number as the sticker isnt there my best guess is J110TLCUR. I'm at my ends with this motor. I'd take it to a shop but they are 3 weeks booked up. Cyl 4 not running. Tested spark with a spark gap tester ✅ Changed coils ✅ Changed plugs ✅ Changed...
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