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07-13-2019, 11:57 AM #16Junior Member
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the issue was the female connector in the wiring harness wasn't making good contact on the pins in the CDM. I tightened all the pins up a tad, replaced the spark plug on the cylinder, the plug wire coming off the CDM and away it fired.
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XstreamVking liked this post
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07-13-2019, 12:00 PM #17
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07-13-2019, 12:03 PM #18Junior Member
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Thanks, I plan on dropping the boat in the water hopefully this next week and burn some fuel.
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07-13-2019, 12:12 PM #19Screaming And Flying!
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Wow a junior mechanic called it.....Had a friend just a few days ago same engine same prob same fix...I guess as these EFI 3.0's get older they need more connector attention.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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Dklongbomb liked this post
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07-18-2019, 06:46 AM #20Junior Member
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Im having the same exact problem. What was the cause?
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07-19-2019, 06:41 PM #216000 RPM
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Loose pins,
think of it like a wall wall socket that won’t hold the plug in -> male female instead of -= nice and tite
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07-25-2019, 10:36 PM #22Junior Member
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Took the boat out this week and ran some fuel through it, ran good for the most part. Have a quick question:
When I started the starboard motor Cold right off the trailer it had one sneeze or backfire right after it fired up but didn’t do it again at all and the motor purred and idled right at 600rpms and hit high rpms. Should I be concerned about anything? I have in line fuel flow monitors and noticed this engine was using less fuel than the port engine per hour. How can you tell if you are running to lean?
A little back ground, I adjusted throttle linkage and roller cam per spec in the manual. I also adjusted the tps to dead on at 3.80 volts at idle.(for some reason my tps is backwards) and rechecked idle.Last edited by Dklongbomb; 07-25-2019 at 10:45 PM.
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07-26-2019, 05:31 PM #23Junior Member
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07-26-2019, 05:57 PM #24Screaming And Flying!
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Usually a sneeze is caused by a lean condition. Can blow out the pulse fuel pump when it does it.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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07-26-2019, 06:18 PM #25Junior Member
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07-26-2019, 06:22 PM #26Screaming And Flying!
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That, i'm not sure about. Most EFI motors don't tend to sneeze.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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07-26-2019, 06:29 PM #27Junior Member
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07-26-2019, 10:24 PM #286000 RPM
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Did it die right after, they can stop just after spark and it is a sneeze but only from the engine stopping some of the pressure just came back out the intake.
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07-26-2019, 10:30 PM #29Junior Member
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07-27-2019, 07:01 AM #306000 RPM
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Sometimes they happen, misses also happen quite often just because.
Check for damage and carry on, a few in a row or every start that’s a problem.
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