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I have. 2001 mercruiser 5.7 with a thunderbolt ignition. it
I have. 2001 mercruiser 5.7 with a thunderbolt ignition. it has the old style FBI and the distributor has two wires to it the pirple/white stripe hooks to white/green and a pinkish wire to white/red .… read more
Jason
Jason
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Vocational, Technical or Trade School
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I have a 30' Bertram with two 350 Inboards, they have less
I have a 30' Bertram with two 350 Inboards, they have less than,100 hours on them. The engines run fine until they warm up and then they start sputtering and missing. You can smell a varnish odor comi… read more
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Jason
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Tan, I have a 1998 4.3l Vortec Mercrusier motor in my boat
Hi Tan, I have a 1998 4.3l Vortec Mercrusier motor in my boat that was dead on purchase. I have a replacement Volvo Penta that is like 2004 ish in great condition thats going back in the same place. I… read more
Tan
Tan
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Hello Tan! I hope you can help me with and electrical question.
Hello Tan! I hope you can help me with and electrical question. I have a 2001 chaparral with a 5.0 carb. with thunderbolt ignition. I am try to find out what the resistance on the coil would be. Thank… read more
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Hi, I recently purchased a 1999 Regal 2150 LSC, with Mercruiser
Hi, I recently purchased a 1999 Regal 2150 LSC, with Mercruiser 5.0 engine. Took it out today for first run. Started easily and ran smoothly at idle. However, I couldn't get it to go over 10 mph, at a… read more
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mercruiser 165hp i6 250ci: mercruiser i6 250ci started, ran
mercruiser i6 250ci started, ran rough at high rpm, now wont start, dont see any spark , have approx 10v to coil with ignition on, and i think leads plugs rotor cap condensor coil all seem to be fine.… read more
Jason
Jason
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i have a 1994 larson 5.0 mercrusier the boat has no spark i
i have a 1994 larson 5.0 mercrusier the boat has no spark i have changed the coil the distribor cap,spark plugs the rotor the module in the distributor still no spark i have 12volts at the coil ?… read more
Jason
Jason
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Have a 260hp mercrusier io with thunderbolt ign. 1800hrs Before
Have a 260hp mercrusier io with thunderbolt ign. 1800hrs Before winterizing the engine for winter engine developed a miss. Replaced plugs no good replaced dist cap no good. replaced wires no good repl… read more
Jeff G.
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Can I get the ohm specs and color codes to test the ignition
Can I get the ohm specs and color codes and proceedure to test the exciter coil and CD unit and siamese coil on a Nissan 1998 ns18es outboard motor? I have no spark and need to test those three parts … read more
Greg Robinson
Greg Robinson
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I have a 1998 Mariah 202 5.7 and i am losing my ground intermitantly
I have a 1998 Mariah 202 5.7 and i am losing my ground intermitantly stereo quits and sometimes the boat stops and starts real fast like the engine shuts off volt gauge drops to zero and then pops bac… read more
Jeremy R.
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I have a 93 boat with a 2 year old 5 litre inboard chev engine.It
I have a 93 boat with a 2 year old 5 litre inboard chev engine.It has a merc outdrive with a 19 pitch prop,no power out of the hole good top end,just put new 45,000 volt coil onstill didnt fix,is it m… read more
James
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I have a 5 liter inboard mercrusier. The motor will fire but
I have a 5 liter inboard mercrusier. The motor will fire but will not stay running. It gets fuel and will fire right away. Will not run… read more
K. Kergan
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What is the Correct Procedure to adjust the Timing on a 1999
What is the Correct Procedure to adjust the Timing on a 1999 Mercrusier 5.0 Liter 305 with thunderbolt Ignition?… read more
Master Tech
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I have a 1996 PJS Seajet VXL 785 (95hp)with 16 hours run-time
I have a 1996 PJS Seajet VXL 785 (95hp)with 16 hours run-time and I have a problem. This jet ski is similar to the 1992 Kawasaki 750SS, but has 2 carbs and LCD instrument panel. The first time I had a… read more
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Dominick, I recently wrote inquiring about information on an
Dominick, I recently wrote inquiring about information on an old glaspar boat (1959). You informed me that it had a newer motor I believe 1981 or there abouts...180 cubics and 140 hp or I guess that i… read more
Dominick
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i have a 88 sunbird boat that had a 4.3 omc motor in it with
i have a 88 sunbird boat that had a 4.3 omc motor in it with the omc cobra outdrive in it, the block cracked on th motor so i bought a 90's mercrusier motor for it, will the mercrusier motor work with… read more
Larry B.
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I have a 9.9 hp two stroke 1995 Evinrude outboard motor with
I have a 9.9 hp two stroke 1995 Evinrude outboard motor with remote throttle. seems to have a fuel problem. not enough fuel to start. i need to give the throttle a lot of gas for it to start up. then … read more
Larry B.
Larry B.
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High School or GED
574 satisfied customers
Ive got twin 350 mercruisers in a 32 Wellcraft. Motors start
I've got twin 350 mercruisers in a 32' Wellcraft. Motors start and run fine up to 1500 rpm. When I throttle up to plane off the motor begin to sputter and backfire.… read more
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

1,074 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

18,955 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,504 satisfied customers

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

Jeff G.

Jeff G.

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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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