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My 1990 4Winns. 3.2 Cobra. Need to order a new Sylonoid for
My 1990 4Winns. 3.2 Cobra. Need to order a new Sylonoid for starter . Who should I order from? What part # should I ask for?… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
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1998 hydrasport Vector 22' WA with new 4.3 vortec on OMC
1998 hydrasport Vector 22' WA with new 4.3 vortec on OMC Cobra stern drive. Current prop is 15.5 x 15. very hard to get on plane without extensive use of trim tabs. WOT 4200-4300 rpm once I am able to… read more
Jason
Jason
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Vocational, Technical or Trade School
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I've got an oil leak at my prop and was curious how to fix
Hello, I've got an oil leak at my prop and was curious how to fix it? can I get some instructions on this process? thanks… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
2,678 satisfied customers
It doesn't propul I can only go on the slow speed any
It doesn't propul I can only go on the slow speed any attempts on increasing propulsion ROM its not going up . I have just lounged my boat today mechanic supposed to to summerise it and do Lube jobs w… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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I just purchased a 1988 bayliner Avanti 2950 with twin 5.0
I just purchased a 1988 bayliner Avanti 2950 with twin 5.0 litre omc cobra outdrives. The previous owner messed around and has wrong props so boat is slow out of the hole and takes too long to plane. … read more
Charles
Charles
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Four Winns 1990, OMC Cobra drive. Purchased recently, used.
Four Winns 1990, OMC Cobra drive. Purchased recently, used. Would not go into gear while on the water yesterday. At first, could rev the motor and get it to go in. Then, it quit going into gear at all… read more
James
James
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Vocational, Technical or Trade Scho
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Went fishing this weekend in my 1991 Sunbird and experienced
Went fishing this weekend in my 1991 Sunbird and experienced problems with the 4.3 OMC Cobra sterndrive. After going out 8 miles into Lake Erie we experieced a couple of loud thumps from the stern tha… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I just purchased a Bravo 3 complete outdrive serial # XXXXX
I just purchased a Bravo 3 complete outdrive serial # XXXXX with 220R gears. It is a 1994 model. I am hooking this up to a 1992 OMC 454, King Cobra engine that has been rebuilt, and now has 395hp and … read more
Jason
Jason
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Vocational, Technical or Trade School
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I have a 1988 Four Winns 180 Horizon with a 205 hp OMC Cobra
I have a 1988 Four Winns 180 Horizon with a 205 hp OMC Cobra Sterndrive. It has always been stored inside the garage. It has not been run in 7 years. What needs to be done to get it going again? Would… read more
James
James
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Vocational, Technical or Trade Scho
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I have a 1987 bayliner with a 2.3L and a omc 984540 model and
I have a 1987 bayliner with a 2.3L and a omc 984540 model and i want to know if i can change out a 1990 4.3L with a model 986032 omc back half of the omc… read more
Tan
Tan
MerCruiser Certified Technician
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I have a 2455 Bayliner w/5L Merc & OMC drive. When I try to
I have a 2455 Bayliner w/5L Merc & OMC drive. When I try to increase speed to get on plane, my engine revs increase as if in neutral and it appears the prop is just not working at higher revs - seems … read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
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recent engine work as follows original motor block cracked
recent engine work as follows: original motor block cracked engine ruined. Purchased 2000 4.3 vortec only used block attached heads and intake from old engine. Some mods along the way, Runs fine no le… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
just had a remand 351 ford installed and rebuilt outdrive.
just had a remand 351 ford installed and rebuilt outdrive. the prop seems like its not letting the boat to run rite. the boat wont go over 3500 rpm and takes forever to get up on plane. its an 89 bayl… read more
James
James
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Vocational, Technical or Trade Scho
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Hi ... i would repower my bayliner 2755 (1989),actually OMC
Hi ... i would repower my bayliner 2755 (1989),actually OMC cobra 5.8,351 ci,carbs, with OMC drive... what upgrade do you recommend, if i keep my existing drive ? MPI ?… read more
shane j forrest
shane j forrest
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I have a Donzi Sweet 16 with a 4.3 Cobra. Do you know if the
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Master Tech
Master Tech
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Vocational, Technical or Trade Scho
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i have a 1987 stingray with a 4.3 omc motor and it runs about
i have a 1987 stingray with a 4.3 omc motor and it runs about 4500 rpms at full throttle is it to high what size prop shou;ld i run on it… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
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Omc cobra outdrive it has clutch dog does motor need to be
Omc cobra outdrive it has clutch dog does motor need to be running in order to shift to reverse?… read more
Mike of Pompano Beach
Mike of Pompano Beach
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hi,i bought a 1988 bayliner trophy 21 ft. it had a 4.3 from
hi,i bought a 1988 bayliner trophy 21 ft. it had a 4.3 from fact. a 5.7 was put in 2004, the leg had to be rebuilt in 2006, was this from to much torque from the 5.7 or is it the same leg as the 4.3?… read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
1,009 satisfied customers
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

23,196 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,409 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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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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