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  1. M

    Mercruiser 3.0 Trouble Starting

    I should have said I assumed spark it did start up eventually before but took many, many tries but agree - to go from some spark to none is odd
  2. M

    Mercruiser 3.0 Trouble Starting

    No spark at distributor but no voltage to any of the ignition components, I checked the lugs, no corrosion, one of the 7.5A fuses is discoloured hard to see if it’s bad but I’ll replace tomorrow l, from what I can see though there’s no fuses for any of the ignition components (purple wires)
  3. M

    Mercruiser 3.0 Trouble Starting

    Another drawing, I don’t have voltage across the purple to ground on anything coming back
  4. M

    Mercruiser 3.0 Trouble Starting

    The fuel pump working well as is the carb, lots of gas flowing. I started looking at the electrical and with the key turned on (and all gauges/lights working) have no voltage across the return purple wire to ignition components (i.e. nothing to the ignition coil, the electric choke, alternator...
  5. M

    Mercruiser 3.0 Trouble Starting

    I pulled/cleaned carb, kept same components but cleaned them all, reinstalled and can see lots of gas going down now but still won’t run, I got it to start at high throttle but it ran very slow, open to any suggestions, if it’s likely carb, I’m thinking about buying a cheap Amazon one to try...
  6. M

    Mercruiser 3.0 Trouble Starting

    I confirmed tithing coming in from the carb down the throat, but when I disconnect the fuel pump line it pumps into a jar, it’s just not making it down the throat, I pulled the carb out it appears clean, no blockage from what I can see so cleaning it up. I checked voltages and they looked good...
  7. M

    Mercruiser 3.0 Trouble Starting

    Thanks I’m going to check spray pattern then I’ll pull it off / flip over and check for water
  8. M

    Mercruiser 3.0 Trouble Starting

    Hi, yes I have the muffs on with water running, I’ll restart tomorrow, push forward on controller and verity two streams - should they appear well aerated/spray (I’m assuming)? I was spraying starter fluid down, carb & choke cleaner and it wouldn’t bite but will definitely check for two visible...
  9. M

    Mercruiser 3.0 Trouble Starting

    Hi all, I’m new here, if this isn’t appropriate please let me know. I recently purchased my first boat a 91 Bayliner with a 3L mercruiser inboard (OD442923) and alpha one gen one drive. Had it out a few times, will confess the hi test here may contain ethanol. Last weekend engine stopped and...
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