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Have. Have a Yamaha 115tlrz, no spark port bank. tested both
have a Yamaha 115tlrz, no spark port bank. tested both pulsers ( dva 7 volts, ohms 330 ) High and low charge coils 90volts and 160 volts, no shorts to ground/ ohms to spec. using my key switch at engine side harness ( used boat switch also for all tests ) disconnected all of PBS oil system harnesses and both temp switches. 12 volts battery present on yellow wire to CDI box even while cranking. THIRD new CDI box installed- still no primary voltage to port coils ? … read more
DAVID BALLARD
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A 351 inmar is having trouble firing(spark). When a SUV
a 351 inmar is having trouble firing(spark). When a SUV added power through jumper cables it fired. Put a new battery in, not the solution. Put a new coil in, seemed to be the solution, launched boat,… read more
Tan
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Afternoon I have a 1980 260 Mercruiser new engine 2 years ago, replaced most parts E
afternoon I have a 1980 260 Mercruiser new engine 2 years ago, replaced most parts Engine running like a champ them stalled and would not start. When I check the voltage at the coil I am only getting … read more
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I have a 1996 Pursuit Offshore with twin Crusader 350XLs sitting
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Jason
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I upgraded to an electronic egnition on a Volvo penta Aq131A
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Tan
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I have a model in a 1955 chris craft. Just bought in July.
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i have a 1990 25 hp mercury there is a miss at full throttle
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Tan
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I have a 1987 Wellcraft 170 Classic, Mercruiser 3.0L I/O. I
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is there a mechanic familiar with mercruiser horizon 5.7L inboard
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I just bought a 150 ocean and was told it has a power pac problem.
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I am working on a 1987 Four Winns 160 Freedom with a 140 hp
I am working on a 1987 Four Winns 160 Freedom with a 140 hp 3.0. I have just replaced the camshaft and timing gears. the boat has not ran in two years. The trouble is it will not start. I am not getti… read more
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I have a 1979 Mercruiser 140 I/O in a 17 Ebbtide. No spark
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I have a 1993 50HP Johnson OB, Model VJ550TLETF- used very
I have a 1993 50HP Johnson OB, Model VJ550TLETF- used very little. On a previous fishing trip there was a brief hesitation, then smoothed out-ran fine. Last trip ran fine to fishing spot-about ten mil… read more
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Hello I have 17 foot bayliner with a mercruiser inboard outboard
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I have a 2000 Stingray with a 350 EFI motor. It shut down
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DocToDock
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1978 stingray w/120hp 4cyl mercruiser turns but no fire new
1978 stingray w/120hp 4cyl mercruiser turns but no fire new coil plugs&battery cap roter& points are clean could it be related to breaker on top of engine or sylinoid… read more
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i have a mercury 40hp 4cyl motor. At first i didnt have any
i have a mercury 40hp 4cyl motor. At first i didn't have any fire to all four cyl. replaced the stator. now i have fire at #1 and #4 cyl. still no fire at #2 and #3 please give me some advice… read more
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I have a 1988 Sunbrid inboard outboard with a 4cyl 3L chev ...
I have a 1988 Sunbrid inboard outboard with a 4cyl 3L chev motor. I have two new batteries, a new coil, 4 new spark plugs, and new points but have "No" spark. I have 12v on the "+" side of the coil an… read more
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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