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Bright blue spark across a 7/16 inch gap on all 4 plug wires. Now what?

Were you posting this for me?

Yeah, that's what I suspected. I'll go through the process of elimination on the ignition starting from the spark, to the coils, to the power pack

Fresh non-ethanol gas mixed 50:1. New Spark plugs gapped at 0.030 inches. Runs the same as with the other tank of gas from before. Runs the same as with the older spark plugs. . Right from the startup and warmed up. Runs the same. . I'll check spark with spark tester at 7/16. Then I'll test each...

Well, the motor sputters exactly the same. Exactly the same. . The carbs did need cleaning, as my pictures above showed. There was also a small amount of goop at the bottom of the bowl. They are spanking clean now. I pumped the bulb just to verify it wasn't the fuel pump. It runs exactly the...

Yep, Under-cowl fuel lines require USCG Type A1-15 marine-rated hose.

Perfect!

Where do you guys recommend I buy under the cowl fuel line by the foot?

Using a deep cycle may work, but may not be healthy over the long term as a "starter" battery.

My original question isn't to run my boat on ALL. I was just asking for when I'm on BAT 1 deep cycle battery trolling around with my kicker motor with all my electronics on - mostly my plotter and fish finder. Then, we want to move, so I switch it to BAT 2 starter battery to fire up my 90hp...

It's interesting one side is dark goopy and the other side is dry green corroded. I'm guessing it was sitting on that one side for some time.

Well, I feel better seeing the carbs need help. . Does these green colors mean water sat in the bowls for awhile? . The motor was laying on its side when I first got there, and then we hoisted it up and put it on stand to run it.

No, I will not be using Berrymans. It supposedly strips the finish.

I was planning on just blowing out every nook, cranny, orifice, jet, with spray carb cleaner. . Should I dip it in my Berryman's? Doesn't Berryman's harm the outside finish on the carburetors? . The only reason I ask is I saw a guy on YouTube (Brandon's Garage) do it. But his were pretty dirty.

Thanks racerone. I always post back. It's frustrating reading threads where someone asks for help and then disappears. Rude.

Here's why I think it's air/fuel related. It started right up and ran great when I first went and looked at it. Then when I got it home it ran nice, but had a slight sputter off an on. So I did a seafoam treatment and it then ran worse. I may be wrong. But a carburetor cleaning is likely due anyway.

I already started on cleaning the carburetors. I figured since it had been sitting, it's best to anyway. . I'll likely have things back together this weekend. . I'll check the things you suggested. . Cold Compression is around 120psi. 120, 119, 121, and 126 PSI

@racerone , do you think it's just the carbs need cleaning? Do you think I should check something else while I'm digging into it?

That would explain when I sprayed Carb cleaner. The carb cleaner probably went right down that hole.

Okay Okay, you're of an older generation. Milk Bottle? I remember the Milk Man and those cold glass bottles in that metal carrier and left on the porch. 😊