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Results 1 to 13 of 13
  1. #1
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Can any one recommend the best procedures (or where I can find them) to prep and start a 50 hp Mariner 2 stroke that has been stored since 1994 , inside but unheated? The engine is in excellent condition .

  2. #2
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    9,850

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    One thing for sure is that you must install a new waterpump impeller.--------If there is oil injection and it is in use that must be checked out as well.

  3. #3
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Quote Originally Posted by racerone View Post
    One thing for sure is that you must install a new waterpump impeller.--------If there is oil injection and it is in use that must be checked out as well.
    Thanks is there somewhere to find free owners and
    service manuals and parts lists for this engine?

  4. #4
    Join Date
    Jun 2010
    Location
    Queensland Australia
    Posts
    193

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    You'll find exploded parts diagrams on this forum under Boat Engine Parts link in header of this website, need to know year and/or serial number to identify correct outboard model first. Also they sell service manuals on this website, good investment I use mine constantly. You may be able to track down an owner manual online using the same information.

  5. #5
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,329

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    I would replace all of the soft parts...hoses, water pump, rebuild the fuel pump and carbs. Take a good look at the wiring for dry rotted insulation. Wiring harnesses are probably available if you can't repair them. Look for signs of a mouse nest under the flywheel...debris sticking out. Pull the spark plugs and give each cylinder a shot of TCW3 oil and crank it a few seconds w/the ignition disabled, then reinstall the spark plugs...new ones if needed.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  6. #6
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Not sure of the year or model but the serial number is 6418733. I'm thinking this means its an 87 but again not sure. Its a 4 cyl 2 stroke. The engine was not used very much and is VERY clean and was stored by itself in an inside storage unit since 94. Plugs are extremely clean. Wires and rubber look great .
    I will be replacing the water impeller for sure. I need to find the part number for this kit. Not sure what TCW3 oil is. Is that the equivalent of a fogging or a penetrating oil? The fuel filter did not have any varnish or debris in it so I will probably spray some carb cleaner in it and run some cleaner through the first couple tanks of gas but not thinking I will tear it the carbs down and clean them out unless it starts or runs hard. I will need to find some info on the fuel pump and card in case I have to rebuild them.

  7. #7
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,329

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Not sure what TCW3 oil is.
    Engine oil for the gas. If you are not tearing the carbs apart just hook up the fuel hose to the engine and stick the other end into a can of Seafoam. Squeeze the primer bulb until it is firm to fill the carbs. Let the Seafoam soak the carbs for 48 hrs. to soften any hardened fuel varnish. When you fire it for the first time it will smoke alot until the Seafoam burns off.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  8. #8
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Thanks good tip!!

  9. #9
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    9,850

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    The 87 in the serial # has nothing to do with the year it was built.--------------------You must ensure that the carburetors are clean !!-------Remember that the carburetor also acts as the oil pump to get oil into the motor.--------A plugged or partially plugged jet means that less fuel will go in along with less oil !!-------Very easy to destroy the cylinder if a carburetor is " not right "

  10. #10
    Join Date
    May 2007
    Location
    Ireland,the only country in the world you can go North to go South
    Posts
    1,414

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    And it's a 1983

    And I just read Graham's post.Hi Graham
    Last edited by haventaclue; 09-03-2012 at 07:18 PM.

  11. #11
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Racer...how do you recommend making sure the carbs are clean and functioning properly?

  12. #12
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    9,850

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    Take them apart for inspection.----------They are very simple carburetors , nothing tricky.

  13. #13
    Join Date
    Dec 2006
    Location
    Lake St Clair /Detroit, MI, USA
    Posts
    173

    Default Re: Starting Recommendationsof a 50 HP Mariner 2 Stroke stored since 1994

    ok ...thanks

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