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How to drain carb bowls on 1999 mercury 2strock 3cyl 60hp outboard

Posted by Geoffm on

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Steve P

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  • Mercury Master
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Hey Geoff,,, there is a "bolt" on the side of the float bowl,, unscrew and remove it,, gas should flow out, freely.,,while the "bolt" is out.. pump the bulb and this will help flush out some crud..BUT - For a complete cleaning,.. you need a qualified professional... its #25 on the diagram Parts for Mercury Marine 60 HP Bigfoot 3 Cylinder Carburetor

Posted on Jul 06, 2017

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Anonymous

  • 52 Answers

SOURCE: 1974 60hp johnson outboard won't run on full throttle.

Carbs probably need to be cleaned and re-built. Common problem in outboards that havent been run in a while

Posted on Apr 13, 2009

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Anonymous

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SOURCE: i have a 1976 65hp mercury outboard how do i change the oil

The drain/fill hole are the same. Put a coffee can or something like that to measure the amont of oil that comes out. Check with a boat parts, or marine or sporting goods section of biggy store. They (at least to) make a pump assembly with hose and threaded end that fits into the hole for the lower unit screw. the other part of the pump fits in a gear oil quart bottle. 80 or 90 is no matter, but needs to say marine grade or suitable for marine use. Nothing special, Penzoil for sure and I think a company Lubrite plus many others make an OK oil. Anyway, put the pump in the bottle and put back in as much as drained out. The level may be marked on the side of the lower unit. If you don't get almost as much out as you put in, check for leaky seal too.

Posted on Jun 12, 2009

Anonymous

  • 2 Answers

SOURCE: 9.8 hp mercury outboard shutting off in low idle speed.

My problem ended up being the spring on the reed valve being weak.But at the same time and while I had already had my carb broke down I took a can of carb cleaner to it and cleaned it. In order to replace the spring on reed valve you will have to buy a new one, but don't worry I only payed about $6.00 for mine. You may also look into replacing your primer bulb if you haven't already because may allowing air to build up in your gas line while you are basically idiling.Once you get the carb straightened out you may have to reajust it again. If I might be able to help you again you may contact me at [email protected].

Posted on Jun 16, 2009

Anonymous

  • 207 Answers

SOURCE: 1999 Mercury Mariner 9.9hp outboard motor

should be on the side with a lever but could you give me more info please

Posted on Jun 27, 2009

John Fourteen Six

  • 2418 Answers

SOURCE: impeller replacing on 1999 merc. 25hp 2 stroke

Should not be that hard. Tape up the ends so you can hold it with out getting cut, (if its ragged or sharp from damage). should be one nut holding the impeller on. If its to tight to hold try air or electric Impact wrench. If its bad you can tap with a hammer to help in removing the old one. If it turned on the shaft you will need to rent a puller. Repost if you need more help.

Posted on Jul 05, 2009

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My Mercury 2cycle, 3 cylinder,60HP outboard run good on 3500-4000 rpm, when I enter no wake zone and run about 1500 rpm motor missfire and makes WOOSH SOUND every few secs. What possibly cause this?


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1976 115 hp mercury outboard motor manual


fuel goes in at connector then to fuel pump then to carbs ! remove connector off fuel line and prime fuel up so you know you got fuel ! then reconnect to engine and prime up again till you see filter filling and bulb should harden , then remove a drain screw from carb bowl and prime again and see if fuel comes out of all carb drains ! if yes then start engine with or in water with kill lanyard on if ok then good ! not then check sparks on all plugs putting them against the head for earth and crank to check ! if ok then i would remove carbs and clean the jets etc ! compressions 100psi or more on all cylinders ! less means recon pistons etc !

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2 Answers

1974 60hp johnson outboard won't run on full throttle under load , max 10%. New fuel and filters ect. The motor is old but has very low hours.


Carbs probably need to be cleaned and re-built. Common problem in outboards that havent been run in a while

Apr 12, 2009 | Boating

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