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  1. R

    5.0 mercruiser 0M361530 carb

    Thanks guys!! Original coil resolved the issue. Not sure if the replacement was defective since installed but now it runs great.. appreciate everyone’s time and help
  2. R

    5.0 mercruiser 0M361530 carb

    Just went to the boat. Found the new coil is shorting out… gonna put original back on as test. I’m thinking my maintenance created another issue..thoughts? While running coil positive to negative.6 v Also noticed the even bank exhaust manifold is cool to touch. Left back is warm like 140 plus...
  3. R

    5.0 mercruiser 0M361530 carb

    Thanks for the info. Thank you!! How does this ignition advance? Does the icm control advance? Anything else I should rule out?
  4. R

    5.0 mercruiser 0M361530 carb

    Thanks that makes sense. I think I need a diagram of how this is wired or a way to test the icm. Running out of ideas
  5. R

    5.0 mercruiser 0M361530 carb

    This was the wire out of the ICM to the distributor sensor. Should that be 12v? I’ll check coil voltage next time I’m there any other electrical tests
  6. R

    5.0 mercruiser 0M361530 carb

    Ok guys finally got around to checking out a few things. -charging system output is 14v alternator and at battery - checked screen at carb light debri so I cleaned and reinstalled - checked for any intake leaks with carb spray and cannot find any - choke is not bogging it down -9v only out of...
  7. R

    5.0 mercruiser 0M361530 carb

    Anyone got the manual?
  8. R

    5.0 mercruiser 0M361530 carb

    Thanks I’ll add this to my list. I’m sure the gauge isn’t accurate but I’ll check alternator output and maybe another battery
  9. R

    5.0 mercruiser 0M361530 carb

    Thanks I’ll do that as well. Anything else that would kill spark or fuel? Sensor?
  10. R

    5.0 mercruiser 0M361530 carb

    Good point! I will check and replace. Adding to my checklist
  11. R

    5.0 mercruiser 0M361530 carb

    Battery is fairly new like 6 months old but even new the gauge read low on dash.. like 11.5 but never had any issues cranking or starting
  12. R

    5.0 mercruiser 0M361530 carb

    Yes that’s what’s happening.. is there a good way to test icm without throwing 700 bucks at the wall?
  13. R

    5.0 mercruiser 0M361530 carb

    I have not looked at it, would you visually see the choke flap closed?
  14. R

    5.0 mercruiser 0M361530 carb

    Hello fellow boaters, need some help. Throwing the kitchen sink at this pig and still isn’t right. A few weeks ago noticed a sluggish performance concern with my boat. I purchased it 8 months ago and ran fine until then. Recently had tubers and couldn’t plane. So I started with some maintenance...
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