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I have a 1975 mercury 200 20hp and have problems run at gh
I have a 1975 mercury 200 20hp and have problems run at high speed, it will cut out. Return throttle to idle and run fine. Try to speed up and sometimes it will go and then cut out again. I have clean… read more
Charles
Charles
Marine Mechanic
5,013 satisfied customers
Have a maybe 1960s mod 200, 20hp Mercury O/ not pumping
Have a maybe 1960s mod 200, 20hp Mercury O/B not pumping water on test stand and leg in bucket of water. Graham… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1979 Mercury 200 20hp outboard motor, without a prop.
I have a 1979 Mercury 200 20hp outboard motor, without a prop. The prop is a thru exhaust and 8 spline. I have found it to be nearly impossible to find a prop for it. But, the same year model Mercury … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I bought a 20hp mercury with power trim and electric start
I bought a 20hp mercury with power trim and electric start but did not get tiler arm. WOULD a tiler arm from a 15hp mercury witch does not have electric start fit on the 20hp.… read more
Charles
Charles
Marine Mechanic
5,013 satisfied customers
WHAT YEAR IS A MERCURY 200/20HP SER# ***** MADE IN CANADA.HOW
WHAT YEAR IS A MERCURY 200/20HP SER# ***** MADE IN CANADA.HOW DO YOU REMOVE BOTTOM END I HAVE THREE3 BOLTS OUT AND UNIT WILL NOT SEPERATE.… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
Hi, I have a 1972 Mercury 200 20hp. Replaced corroded wires,
Hi, I have a 1972 Mercury 200 20hp. Replaced corroded wires, went for test ride, functioned great. Top end was sluggish, so I did a link and sync. Now, the motor only goes in foward (sloppy) and neutr… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
374 satisfied customers
I have a Mercury 200 Serial #3433614 20hp motor. Fuel system
I have a Mercury 200 Serial #3433614 20hp motor. Fuel system seems to be flowing great but not turning over. Have spark at the plugs and voltage is testing around 18-20. Any suggestions? and is this v… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
NEED PART NUMBER FOR 1973 MERCURY OUTBOARD. WOULD LIKE TO
NEED PART NUMBER FOR 1973 MERCURY OUTBOARD. WOULD LIKE TO HAVE IT HANDLED BY jAMES WHO ALREADY HELPED ME… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a mercury 200 about an 88 or 89 model was using the
I have a mercury 200 about an 88 or 89 model was using the boat the other day ws running fine then all of a sudden would not idle would power up and run once i played with a min. but would not idle th… read more
Jeremy R
Jeremy R
1,069 satisfied customers
I have a 1979 Mercury 20 HP outboard - looks as those I had
I have a 1979 Mercury 20 HP outboard - looks as those I had a bearing blew in the power head - can I replace the power head with a powerhead from a Mercury 20hp from1978 . The serial on the 1979 20hp … read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I have a Mercury 200 20hp boat motor that starts but then runs
I have a Mercury 200 20hp boat motor that starts but then runs at a very high speed until it stops by itself. I can't adjust the speed with the throttle.....need help troubleshooting. thx.… read more
Jeremy R
Jeremy R
1,069 satisfied customers
Hi, I just bought a older Mercury outboard, model 200 (20HP)
Hi, I just bought a older Mercury outboard, model 200 (20HP) serial #4352947, and the problem it has is that the lever mounted on the side won't actually change the gears from nuetral to forward or re… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a Mercury 200 (20HP) SN# 3540741 How can I find out
I have a Mercury 200 (20HP) SN#(NNN) NNN-NNNNHow can I find out what year this motor is??? If there is a VIN# XXXXX would that be located? Thanks for you help… read more
Scott Martin
Scott Martin
Service manager
Vocational, Technical or Trade Scho
167 satisfied customers
I have a mercury 200 20hp outboard motor that is in some sort
I have a mercury 200 20hp outboard motor that is in some sort of locked position. You can not turn the motor left or right. Can you tell me if there is an easy solution for this?… read more
Jeremy R
Jeremy R
1,069 satisfied customers
I have 1988 Nissan NS5B2 5hp 2 stroke outboard It came off
I have 1988 Nissan NS5B2 5hp 2 stroke outboard It came off a sail boat that I sold and looks like new. I can't start it It will start with starter fluid but stops when it's all burned. Drained the tan… read more
Abiorca
Abiorca
Proprietor
Vocational, Technical or Trade Scho
1,768 satisfied customers
hi guys. i have a 1977 mercury 200 20hp tiller handle and
hi guys. i have a 1977 mercury 200 20hp tiller handle and want to convert to a remote steering/throttle. the motor will be mounted on a 8x12 two pontoon boat. is there any conversion kit or diagram th… read more
Dr. Joe
Dr. Joe
Bachelor's Degree
198 satisfied customers
i have a mercury 200 20 hp boat motor think its a 1971 where
i have a mercury 200 20 hp boat motor think its a 1971 where can i find a propeller for it i dont have a part number, diameter, or pitch for it.the serial number on the motor is2993985 can you confirm… read more
FieldServiceTech
FieldServiceTech
Vocational, Technical or Trade Scho
146 satisfied customers
I have a mercury motor 20 hp model 200 serial number(NNN) NNN-NNNN
I have a mercury motor 20 hp model 200 serial number(NNN) NNN-NNNNwondering the year of it...… read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

Ted G.

Ted G.

Rigger, Diagnostician

704 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

17,310 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,264 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,729 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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