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Mercury outboard I have a problem with the oil tank leaking INTO THE ENGINE when the boat is stored at home. The first sign is when 2-stroke oil begins dripping off the skeg. This has run down the engine drain. Upon removing the bottom spark plug, the oil has filled the cylinder. If the engine is stored with the engine fully raised the oil is running out of the bottom carb and into the engine compartment. If the engine is stored fully down it fills the bottom cylinder. There is an obvious issue with possible hydraulicing of that cylinder, not to mention the cost of all that oil!

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Sounds like seal in auto lube pump is faulty

Posted on Apr 01, 2014

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 1996 Mercury 150 Nitro EFI

Dont have the manual in front of me...recollect that there's two types of warnings. The pulsating warning is oil (starts with 30 minutes of oil left) or the fuel filter (or sperator, something like that) may have water in it. Running outboard with cover off, is a little black box that would have a red light lit if that's the case. If oil full & no red light, may be oil injection system...would also check to make sure lines aren't pinched, etc. Mine has been specific to oil the two times its gone off.

The full non-pulsating is engine overheat. Not sure beyond that.

Not much, but hopefully gets you going.

Posted on Jun 23, 2009

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SOURCE: 2003 115 mercury efi losing power

I am a Mercury certified technician. What you need to do is take it to a Mercury dealer and have them hook it up to the computer. It sounds like the engine could be in Guardian mode or possibly a high RPM misfire. It is not something that is common and the computer program that Mercury has for those is able to test misfires and all sorts of cool stuff. It can also tell you if the engine was broke in properly, how many actual running hours are on it and even at what RPM each hour was ran. It will be able to bring up all faults that it has had in the past and any faults that are current. I know that you are probably looking for a quick, easy fix but for this problem I dont think that there is any way around taking the engine in. For what it is worth, if they charge you for more than 2 hours to run it on the computer then take it somewhere else. I can fully test the engine with the computer in about an hour. The only reason that it would take any longer is if they had to put it in the water to duplicate the problem but most shops will have a test tank that is capable of running your engine under a load at full throttle. Sorry for the bad news but I cant think of any other way and throwing new parts at it is just going to get expensive quick.

Posted on Aug 11, 2009

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SOURCE: i need wiring diagram for boat 1993 Bayliner jazz

can't start my 1993 bayliner 1400 jazz. replaced key switch, kill switch today. I got the boat last week running.

Posted on Jun 12, 2010

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1998 1150412UD Mercury Outboard - is it 2 or 4 stroke


If it has an oil compartment, it has to be a two stroke. There is a rough and ready way to check. A four stroke engine has a compression stroke on every four strokes, whereas a two stroke has compression stroke on EVERY upward stroke of the piston. Remove the spark plugs, and turn the engine until you see the piston. Put your finger over the plug hole and turn the engine one revolution. Do you get compression? Keep turning, do you get suction and then compression again. If so it is a two stroke.

you can also follow the pipes from the oil tank and see where they go to? Yours should have a pipe from the pump to the carburetor inlet manifold.

On a new boat though, my advice for you is to take the boat and engine to a marine engineer for a service. The cost is minimal and you will get everything set up for the season, especially the carbs. You can ask lots of questions. The cost is about $150 and is well worth the piece of mind that you are not going to break down.

The critical bit you have missed from your post is the HP. If you Google

Mercury HP Serials

and you will end up at a site with engine details. Then google the same, but manual instead of serials. If you know the year of the boat, add that before 'Mercury'.

Use Evinrude XD50 two stroke oil. It is expensive but the best in clean running, non fouling and lack of acrid fumes. One $48 jug will last a season and a bit if you go out twice a week as I do. My boat goes to the marina on Wednesday :>)

Google

May 29, 2017 | Mercury Boating

1 Answer

WHATS THE FUEL AND OIL RATIO FOR 25HR 2CYL OUTBOARD MERCURY


need the year of manufacture as some 2 stroke units have oil injection that automatically mixes the oil in the correct ratio for engine rpms otherwise it is 50:1 ( 50 parts fuel to 1 part oil)
oil requirements --certified tc-w3 2 stroke outboard oil ---not ordinary engine oil
reference
google --type in mercury outboard oil to fuel ratio

May 07, 2017 | Mercury Boating

1 Answer

I have a 20 hp mercury outboard serial#06082001.I want to know what year it is and if it's 2 or 4 stroke


If you drop the first zero it would put it at 1981.

http://www.themarinedoctor.com/msn.pdf

this site gives a different answer, as 1980- 81, so close. It SUGGESTS it is a 4 stroke engine.

http://www.boats.net/parts/search/Merc2/Mercury/25%20%282%20CYL.%29%282-STROKE%29%28International%29/parts.html

It is likely a 4 stroke, but I won't give you a definitive answer, due to the damage it can cause with a guess!

A four stroke running with two stroke oil will just smoke, but a two stroke with no oil will seize and leave you stranded on the water with a seized engine!

A four stroke engine has valves operated by push rods or a pulley and a chain, a two stroke just has a head. Take a look at the engine and it should be obvious.

For your first service, I would suggest you go to a marine engineer. Ask all the questions, and get the right answers. When I had my 1986 Evinrude serviced, i typed a list of questions and left the list with him. i asked him when I picked up the boat and wrote the answers down. The first one was 'petrol to oil ratio and which is the best oil'. A basic service will cost you a hundred bucks and you will have some comfort that you are unlikely to break down, 6 miles offshore with only a paddle :)

https://www.google.ca/search?q=20+hp+mercury+outboard+serial%2306082001&ie=utf-8&oe=utf-8&gws_rd=cr&ei=uwm-WKjHK6SUjwSApJLQBw#q=mercury+outboard+serial+number+lookup&*

Mar 07, 2017 | Mercury Boating

1 Answer

Do I use reg gas or a gas mix?


Matt, If engine is two stroke and not oil injected then yes you must mix 2 stroke oil and fuel. 4 stroke engine have a crank case which is filled to proper level with 4 stroke engine oil. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How to Decide Between Two or Four Stroke Outboard Boat Engine

4 Stroke Outboard Motor vs 2 Stroke Outboards

2 stroke outboard Vrs 4 stroke outboard

http://www.cottagetips.com/tips/boat-motor-gas-to-oil-ratios

Apr 15, 2016 | Boating

1 Answer

How to winterize 175 mariner outboard motor


Take a look at these instruction videos.

How to Winterize an Outboard boat, step by step guide in ...

9k=? 11:25 https://www.youtube.com/watch?v=x217iM77Qjc Oct 30, 2012 - Uploaded by Warren Hardy A detailed step by step guide to winterizing your outboard boat motor for ... most 2-stroke outboards ...

Winterizing Your Boat: Step 2 The Engine & Lower Unit ...

9k=? 10:01 https://www.youtube.com/watch?v=5kiOms2f4gg Oct 6, 2009 - Uploaded by West Marine How to Prepare Your Boat for Winter - Step 2 in the five step process on How to Winterize Your Boat: The ...

How to Winterize a Four Stroke Outboard Motor - YouTube

9k=? 2:44 https://www.youtube.com/watch?v=PRBnwYk8_Yk Nov 7, 2012 - Uploaded by boats.com Four stroke outboard motors are by far the most popular on the market. But there's a lot of confusion about ...

How to winterize your outboard

www.classicglastron.com/gl-outboard-winterizing.htm For smaller outboards, the simplest way to flush your outboard is by using a large ... water or purchase a set of "ear muffs" (available at your local marine dealer).

How to Winterize an Outboard Motor - Adventure

adventure.howstuffworks.com/outdoor.../how-to-maintain-a-boat4.htm ... the winter and prolong its. Learn how to properly winterize an outboard motor. ... Buy lubricant, oil, and fuel conditioner at a marine store. Time: about 2 hours.


Jan 09, 2016 | Boating

1 Answer

Water got into the engine oil of my 8 hp 4 stroke when on the boat only as troller


Water gets in your engine through the exhaust with the boat speed! Lift that engine when not in use!

Oct 16, 2014 | Mercury Marine 8hp & 9.9hp 4 Stroke...

2 Answers

Need oil change in water


If its a 2 stroke, there is no oil to change, if its a 4 stroke, you can pump the oil out with a small diameter tube pump.Depending on the motor, you can get it through the dipstick or the fill opening. If you need to change the gear oil, there is no way to change it while in the water. Stop by a marine supply store and get some oil absorbsion pads (diapers) in case you happen to spill any oil into the water

Mar 11, 2009 | Light Outboard Motor Boat Bass Fishing...

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