Slabmaster II
50 HP Mercury Problem
Went fishing this past week and to start the week my motor would not get up to speed...I had a problem with primer ball not holding prime so I changed entire fuel line with new primer....still no go.....then by accident as I was going down the lake I figured out that I can get up to full speed by continually pressing in the key choke... Any suggestions? Plugged fuel filter? Thanks for any help
TT
Take your kids hunting so you don't have to hunt for your kids.
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Crappie.com 2019 Man of Year, Supermod & Moderator of the Mechanics Forum
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Sounds like you have a jet plugging up. I'd start with a good dose of seafoam. Put it on muffs, let it run for 10-15 minutes. Let it sit overnight, then run it again. Do this a few times at the house. Then when you can take it to the lake and run it hard for a while. Hopefully that will clean it out without having to take carb apart. Ideal thing is if you have access to a smaller gas can is just a couple of gallons of fresh gas and a real heavy dose of seafoam.
Super Mod and 2014 Crappie.com Man of the Year
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If Cray's suggestion doesn't work rebuild the fuel pump.
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va
Super Moderator - 2013 Man Of The Year
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Also ... if you use Seafoam (or Deep Creep) at home on muffs .... don't do it in the driveway if at all possible. The carbon/gunk that is flushed out will make a mess of your driveway. (that's not personal experience, just what I've read about happening)
Slabmaster II
Well I started the Sea-foam process tonight...I might add that I had the motor in neutral and motor ran fine but as soon as I took it out and was going to let it idle it would die unless I pushed in key to choke it...Thank you for your suggestions and I will update you with any findings or resolutions....
TT
Take your kids hunting so you don't have to hunt for your kids.
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Crappie Wall Hanger II
The engine is running too lean without the use of the primer (choke). The application of seafoam may or may not clear the blockage. If the blockage is merely solidified oil formed from setting up, the seafoam might work. If the blockage is particles of 'trash' from the tank or a deteriorating fuel line, the seafoam will not work. The better choice would be to get the carbs pulled down and cleaned. Since the fuel and oil are mixed before entering the carb, less fuel means less oil. It's cheaper to clean the carbs than rebuild the engine.
I'd rather be fishing.
Slabmaster II
Tore carbs apart and top and bottom carb's plugged....Cleaned and back together......Put on water and problem solved.....Thanks All
Take your kids hunting so you don't have to hunt for your kids.
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Slabmaster
I have this same outboard and have similar issues. I found that the internal lining of the fuel hose was disintegrating. I replaced the hose and rebuilt the fuel pump. I found pieces of the fuel lining all the way up into the fuel pump. I thought the fuel pump rebuild would resolve my issue but didn’t. Thinking about rebuilding the carbs next. What did you find that had your carbs plugged?
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Slabmaster II
Where the fuel line attach's to the carb's and fuel goes up to the float is where it was plugged...I soaked em pretty good with GumOut Carb Cleaner then combination of air and small wire got em cleaned out....Appeared to be bad/old gas deposits
Take your kids hunting so you don't have to hunt for your kids.
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