Mercury Boating - Recent Questions, Troubleshooting & Support

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Mercury 40 outboard 2cyl 2 stroke backfiring ,non starter.

limited info generic answer ---timing --carb -coil --fuel problem
4/16/2024 3:44:57 PM • Mercury Boating • Answered 3 days ago
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Mercury Outboard Motor. Year of manufacture for serial number A133352.

Question edited for a lot more clarity. They are normally listed by HP. https://www.google.com/search?q=mercury+outboard+serial+number+lookup ..
4/7/2023 10:44:34 PM • Mercury Boating • Answered on Apr 07, 2023
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1993 Mercury Outboard Engine. Why is it not peeing?

Question edited for clarity, but needs engine model and HP. Question moved from Dishwashers. Some ideas here. Check that the impeller spins (the drive is okay), but it sounds like you have blocked passageways. https://www.google.com/search?q=1993+Mercury+Outboard+Engine.+Why+is+it+not+peeing ..
3/26/2023 11:46:23 PM • Mercury Mark 75... • Answered on Mar 26, 2023
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Anybody know where I can find a Service Manual for a 2016 Mercury 15 HP 4 stroke (Non-EFI) outboard.

https://www.downloadboatmanuals.com/motors/mercury/ -------https://www.autopartsrepairs.com/mercury-outboard-repair-manual/
12/13/2022 1:54:32 PM • Mercury Boating • Answered on Dec 13, 2022
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1980 mercury thunderbolt 7.5 hp outboard, i can't figure out where to fill the lower unit gear oil? I have a flush hole then a tiny one at the bottom but can't find the 3rd hole, any ideas??

https://www.mercurymarine.com/en/us/land/owners-manuals/ https://www.downloadboatmanuals.com/motors/mercury/
9/19/2022 1:48:44 PM • Mercury Boating • Answered on Sep 19, 2022
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What will cause my boat to crank but not start

Check the fuel filter for blockage and check the plugs for spark. If no spark, you could have bad coils. Here is a video on how to go through the checks.
8/25/2022 2:24:11 PM • Mercury Boating • Answered on Aug 25, 2022
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The serial # on my Mercury 700 outboard is 4978147. What year is it?

Not all serial numbers give the year of manufacture. It will be in one of two locations on the label you got the serial number from. Look on the next line down under the actual serial number. There should be a four digit number. This is the year of manufacture. On some labels there is a small square in the lower right corner, next to the CE mark, with a two digit number in it. This is the last two digits of the production year. 02 is 2002, 04 is 2004 and so on.
6/29/2022 9:28:59 AM • Mercury Boating • Answered on Jun 29, 2022
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My merc. 40 hp. 2 stroke tilt trim works at the dock but not under way. It seems too weak to work under load. What should I try to remedy this problem?

Make sure your engine is producing electricity and battery is good (this does not mean charged you must have it load tested). If both of these are good than you might have a weak trim pump or a bad valve body. You can get these parts aftermarket through sierra.
4/7/2022 5:21:44 AM • Mercury Boating • Answered on Apr 07, 2022
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Mercury serial number#586433 What year is this mercury?

1/28/2022 6:54:51 PM • Mercury Boating • Answered on Jan 28, 2022
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I want to remove the final drive from a Mariner 15HP outboard but the shaft won't come away.

you have to disconnect the shift rod first
10/29/2021 2:05:36 AM • Mercury Boating • Answered on Oct 29, 2021
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2009 90hp 2stroke mercury optimax. Does it have an oil filter?

NEVER SAW ONE THAT DID
8/26/2021 7:36:40 AM • Mercury Boating • Answered on Aug 26, 2021
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Mercury 9.9 2 stroke motor goes but propeller not moving

DRIVE SHAFT POSSIBLY BROKE SEE A DEALER
8/26/2021 7:36:01 AM • Mercury Boating • Answered on Aug 26, 2021
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Does a 1979 Mercury 40 HP 2 Stroke have a fuse in it? If so, where is it located?

Does it turn over? But won't start? Have you checked the spark? My thought, if it turns over it's not a fuse. See if you have a spark at the plugs, YouTube will show you how. If spark! Next is fuel. If no spark, Probably blown ignition module, not fuse.
8/17/2021 9:43:34 PM • Mercury Boating • Answered on Aug 17, 2021
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I have a 2013 50hp 4stroke mercury outboard engine what is the rod cap tourqe specs to

Product Knowledge Handbook - Mercury Marine

www.mercurymarine.com > pdf > Mercury-Outboards PDF Specifications, features, and options are subject to change without notice. ... Connecting Rod: Linkage that connects the crank to the piston in an engine or ... crankshaft main bearing cap is secured by four bolts, rather than the standard two, for ... Found on all Mercury Marine 4-stroke ... At top speed, Mercury 50hp Four.

mercury torque specs - The Hull Truth - Boating and Fishing ...

www.thehulltruth.com > ... > The Boating Forum
Nov. 3, 2017 - The Boating Forum - mercury torque specs - im looking for mercury powerhead torque ... Proportional Serif, Monospace Serif, Casual, Script, Small Caps ... sorry for the novice question, but is this correct for marine engines? if so, ... 4-16 - titled POWERHEAD Crankshaft, Pistons and Connecting Rods (4 Cyl.) ... Missing: 2013 ‎cap

40/50/60 FourStroke - Brunswick Marine in EMEA Download ...

download.brunswick-marine.com > outboard > 4-stroke
PDF information. The description and specifications contained herein were in effect ... Name of engine manufacturer: Mercury Marine Technology Suzhou Co., Ltd. Address: ... 4 stroke. Identification of Engines Covered by This Declaration of. Conformity. Name of ... in loosening or disengagement of the steering link rod. This can.

torque specifications for 1983 50 hp mercury outboard for ...

forums.iboats.com > ... > Mercury & Mariner Outboards
Jul. 17, 2013 - I think those bolts are 5/16 and for clean dry threads 20 ft-lbs is roughly the rating. That's for a grade 5 (3 marks on the head) but marine engines ...
3/4/2021 11:12:06 PM • Mercury Boating • Answered on Mar 04, 2021
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What model and year is a 90hp mercury outboard ser. No.OB378882?

That serial number was produced during the years of 1988 through 1990.
10/21/2019 3:40:38 PM • Mercury Boating • Answered on Oct 21, 2019
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How do you get fogging material into the cylinders of a Mercury outboard. you cant get the extension of the fogging material into the cylinder cuz it is too short

Take out the spark plug. Hold a drinking straw up to the spray nozzle and shoot the fog into the spark plug hole.
9/30/2019 10:35:17 AM • Mercury Boating • Answered on Sep 30, 2019
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What is the weight and length of a 2005 Mercury 2 stroke long shaft boat motor?

Depends on the HP of the motor. The long shaft will only ad a few lbs. See this link for motor specs on weights. https://www.nadaguides.com/Boats/2005/mercury/outboard-motors
9/25/2019 2:50:27 AM • Mercury Boating • Answered on Sep 25, 2019
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