Search results

  1. J

    OMS help needed

    At this point, I'm totally confused. Went out today, hooked up the vro tank and my pre-mix tank, opened the cap on the oil tank and started it. Got tons of smoke beyond what I saw yesterday. Unhooked the oil line, put my clear tube on, and started it. At first it pushed oil 3ish inches back...
  2. J

    OMS help needed

    I don't hear anything like that at shutdown, nor do I hear a click every 30-45 seconds, though there is sometimes one 30-45 seconds after shutdown. Is it possible to check the bearings without tearing it down?
  3. J

    OMS help needed

    Also, it looks like rebuild kits are still available, 2 part numbers needed. Ate both needed and I assume they contain the diaphram you mentioned?
  4. J

    OMS help needed

    My understanding is/was the VRO changed to OMS around '93, maybe this model didnt. Agree on the alarm. I checked and I get a regular alarm check when I turn the key on. I'll try it with the oil tank open, but would that be similar to the open ended tube?
  5. J

    OMS help needed

    Compression test engine warm, shut off ~30 minutes ago, heads about 110-115deg, all plugs out, cranking for 2x 3 second bursts with the starter per cylinder. This was with my 15+ year old Harbor Freight gauge, so... 121, 122, 120, 118 so compression at least looks equal. I did notice 3-4" of...
  6. J

    OMS help needed

    1994 Johnson 120 TLERC Noticed my engine seemed to be clicking loudly at idle on the water and I think shook a bit more at low rpm than normal and maybe a bit sluggish. I never got an alarm. Brought in home and started it on the hose, noticed no smoke, and shut it down.Began reading that the...
  7. J

    '94 Johnson 120 hard miss

    Interesting side note that probably means nothing. Noticed that the new power pack doesn't have the brass spacers in the bolt holes that the original had. When I put the ground wire on, I put it under the same nut and im not convinced it tightens against the housing. I would assume there is...
  8. J

    '94 Johnson 120 hard miss

    VRO is still on it. Most places I look list the QL78YC for this motor, including BRP parts, but just noticed the Clymer I have on the shelf lists the QL77JC4.
  9. J

    '94 Johnson 120 hard miss

    Currently has a set of QL78YC's with maybe 5 hours on them. I installed new plugs with the first power pack.
  10. J

    '94 Johnson 120 hard miss

  11. J

    '94 Johnson 120 hard miss

    I did connect a timing gun to each lead to confirm spark, but only at idle. If I can get this thing in a barrel of some form to keep enough water for the cooling system, is it safe to take the prop off and wind it up to that speed for a moment unloaded?
  12. J

    '94 Johnson 120 hard miss

    Replaced the Power Pack and plug wires over the winter and finally got it out for a run today. At 3500-3800 roughly, there seems to be a hard miss. I can back the throttle down just below it and it ran perfect up to 3500 and cruised a couple miles. Throttling up, As it started to push over in...
  13. J

    Mercury 20hp carb id

    Looks like a BA2A carb, so 73 or later kit should work?
  14. J

    Mercury 20hp carb id

    Good catch, I missed that stamping. I'll try to see what it says. Who knows what I'll find asI start on this thing, lol.
  15. J

    Mercury 20hp carb id

    After 20 years, I've decided to dig this motor out and try to get it running. This is a frankenmotor my Dad put together somewhere between 1975 and 1980 and my brother and I ran the prop off it as kids on an old 14' jon boat. The motor was running when shut down and stored 30ish years ago in a...
  16. J

    Problem with new power pack

    1994 Johnson 120 looper V4. Noticed late last year that there was a no start issue occasionally. Before the season this year, I traced it down to a short/internally broken black/yellow kill wire as it goes into the resin on the power pack. Instead of fighting a 25 year old pack, I ordered a new...
  17. J

    94 Johnson 120hp no spark

    New pack will be here tomorrow. Existing one looks original, so even if I found a workable fix, it is probably on borrowed time. I don’t get that many days on the water each year and I don’t want one hosed over a sketchy at best repair. I’ll tinker with this one and maybe it can be a spare. As a...
  18. J

    94 Johnson 120hp no spark

    Found the culprit. Now to try to figure out the best repair. If I push the yellow/red wire the way it would be with the pack bolted down I get no start. I pull that wire back any other direction and it fires right up. Ergo, seems like the wire has a short right as it goes in the rubber/epoxy...
  19. J

    94 Johnson 120hp no spark

    Backstory- End of last season had an intermittent starting issue. It was either fine, or had no spark. Pulled the power pack up and Found the yellow wire with red stripe had more almost through against something. With the pack loose and no major bend in the wire, it would start and run. Bend...
  20. J

    Temp sender on 120 Looper

    The tan wire on the port head on my '94 120hp looper has corroded and come off the sender behinf the plastic or rubber cover, effectively disabling temp alarms. It looks like sender is NLA and NOS ones still floating around are $$$. I haven't pulled it apart to look yet, but Is it possible to...
Top