1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

IWishMyBoatRan

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carbs rebuilt, link and sync done, new fuel pump, new hoses, new tank, new primer bulb, runs great on muffs..
I put it in the lake today.. hard to start, didn't want to idle, bogged down when trying to go and died.

Ideas?
 

rockyrude

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

All final carb adjustments need to be done in the lake. The back pressure on the exhaust changes all of the settings from when on the muffs.
 

IWishMyBoatRan

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

Could the fact that my #1 cylinder is only at 90 and the other two are at 110 and 120?
 

rockyrude

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

It's not helping, but what I said earlier still holds.
 

boobie

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

When you have it in the water and running, pull one plug wire at a time and see if you can find a dead cyl.
 

IWishMyBoatRan

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

I just noticed there is fuel spitting out of the back of the top part of the fuel pump... Um.. normal?
 

boobie

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

No......Pull it off and replace or repair it.
 

IWishMyBoatRan

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

It just got rebuilt 2 days ago. New everything inside of it.
I was just reading how some of these newer kits have tiny metal caps in there, instead of the larger caps, and the tiny metal ones tend to come off the spring and puncture the diaphragm. Do you think that is what happened?
 

boobie

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

Better take it apart again and check it.
 

IWishMyBoatRan

Petty Officer 3rd Class
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Apr 30, 2013
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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

replaced diaphragm and with bigger plastic cap, no more shooting fuel out the back
 

boobie

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Re: 1971 60 HP Evinrude runs fine on muffs, dies and bogs in water

It sure would help if you stuck to one post as it gets less confusing !! Thank you.
 
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