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  1. CaptnKingfisher

    1990 Force L-Drive 90hp -- Can't get it to idle -- losing my mind :D

    I gave up on this thread when he posted he has a bad mix of fuel and he plans to keep using it. No wonder the thing runs like hell.
  2. CaptnKingfisher

    1966 johnson 6hp only firing on one cylinder with spark from both plugs

    What about dwell? It's more important than the point gap
  3. CaptnKingfisher

    Yamaha 4.3l YEMS - WOT problem

    Sounds like it's ignition circuit related, like suddenly you lose a cylinder. When the problem occurs, does it last awhile? Hopefully it lasts long enough so you can do some diagnostic work. Next time it occurs I would use a pair of insulated pliers and try a cylinder drop test. Intermittent...
  4. CaptnKingfisher

    1966 johnson 6hp only firing on one cylinder with spark from both plugs

    I don't know much about this issue, but id start by doing a compression test on both cylinders.. I realize that you identified weak spark on one of the cylinders but that's where I'd start. You got the service manual? Resistance test on each spark plugs wire, resistance test on coil circuits...
  5. CaptnKingfisher

    1994 mercury mercruiser engine not starting

    The manual has it all. The manufacturers service manual is way better than the aftermarket companies (seloc, clymer, etc) so if you don't have the real manual you may want to get it. Testing the ignition circuit is easy to learn. I always start with spark though, because that tests the entire...
  6. CaptnKingfisher

    1994 mercury mercruiser engine not starting

    When diagnosing issues I start with the ignition circuit because it's easy to test the entire ignition system with an adjustable spark tester and a multimeter. And the results are black and white. If your spark jumps 7/16" and you've got good compression then you move on to fuel. So my...
  7. CaptnKingfisher

    Dies when throttling up from idle after warm up/ 89 merc 3.7 2bbl

    Never knew inline filters were dangerous or illegal. What makes em dangerous
  8. CaptnKingfisher

    1990 Force L-Drive 90hp -- Can't get it to idle -- losing my mind :D

    Use adjustable spark tester to verify spark is jumping 7/16" gap that way we can eliminate the ignition circuit as the problem. It sounds like fuel issue anyway. I don't follow the "1.5 turns" or whatever for adjusting idle mix, because the mix is going to be very different if you are at sea...
  9. CaptnKingfisher

    Pressure testing fuel tank

    Never heard of hydrostatic.. on my way to YouTube now.. at least yanno your welds were good lol
  10. CaptnKingfisher

    1990 Force L-Drive 90hp -- Can't get it to idle -- losing my mind :D

    This is my first time reading through this thread and I fear for the life of your motor. You may destroy it yet by spraying all that carb cleaner to start it up, advancing the timing and trying to blindly turn screws hoping to find the magic settings. The service manual has specs and you should...
  11. CaptnKingfisher

    1997 Sears Gamefisher 9.9 2 stroke won’t start

    Only if your willing to this all over again if it doesn't work. In my estimate my time has is worth more than $20, so I try not to risk cheaping on a job and potentially having to do it twice. Heard on car talk: "It's the cheapskate who pays the most in the end"
  12. CaptnKingfisher

    Tach settings cobra 3.0

    Seconded
  13. CaptnKingfisher

    1997 Sears Gamefisher 9.9 2 stroke won’t start

    Sell it for parts. Unless you feel like pulling the head apart
  14. CaptnKingfisher

    low compression 3.0 cobra (new)

    If youre using the rpm gauge on the dash try verifying the rpms with a tiny tach, multimeter or timing light. Your gauge could be wrong. First thing I would do to address this is check timing and dwell are set correctly, then verify idle speed. Check that plugs are the ones recommended by your...
  15. CaptnKingfisher

    Pressure testing fuel tank

    Solved. Sort of. I took the anti-siphon fitting off, connected directly to the port for the fuel line and used my hand pump to pressure test. I fearlessly kept pumping despite the enormous swelling of the tank. I eventually got to three psi, it took a ton of air. Found a leaking sending unit...
  16. CaptnKingfisher

    Pressure testing fuel tank

    I've got a polyethylene tank from 1989. Water in my fuel had me concerned I decided to replace the vent and filler hose, and the filler o-ring. I pulled the tank out the boat to inspect it. After a power washing and visual inspection it looked a lot better than I expected. I set up to pressure...
  17. CaptnKingfisher

    Mercarb 2BBL accelerator pump check ball

    Where did you get this gif? I'm trying to learn more about carberators
  18. CaptnKingfisher

    evinrude spark issue

    Well this is one of those "I got spark, compression and fuel but won't start" issues. So I hope you don't get offended by this question. When youre testing for compression, are you remembering to press the relief valve on your tester between each cylinder? I find it strange that your compression...
  19. CaptnKingfisher

    Need Guideance. 2001 Merc 50 ELPTO

    Compression numbers don't lie, but spark and fuel do. Read the plugs for clues about your spark or fuel problem. You could have weak or intermittent spark issues for example a weak coil or bad plug lead will be made obvious if one of the cylinders has a black plug and the other cylinders look...
  20. CaptnKingfisher

    Mercruiser 5.0 engine help for dummies

    Welcome. The day I started wrenching on my own engines was the day I found a new passion. I think I enjoy the maintenance as much as I enjoy the boating. Specially when it's not my boat I'm working on 😂 My first recommendation is get yourself a service manual for each engine. A ton of good...
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