Old Mercury 50 HP Help

[lathehand]

If I were you I'd change out both of them regardless.A little more work this season could save you from doing it again next season.

[csvencer]

Well just got the gaskets pulled and I think I found the problem...The gaskets between the carb and block were upside down, the pulse hole was completely blocked. The gaskets were installed before I got the motor so I never even thought about it. Off to get two new ones tomorrow. Also going to change out the fuel pump diaphragms as I have two of them sitting here now. Hope this gets it all straightened out.

-Svence

[RidgeRunner]

X2 What Lathehand wrote. I would go thru the carbs and double check evrything after finding the gaskets upside down. That was your A-HA moment right there.

[csvencer]

Gaskets and diaphrams replaced and she pumps fuel! Everything is up and running, just need to tweak the idle. Hoping to splash her tonight. Thanks for all the help.

-Svence

[RidgeRunner]

You putting it on the McKee Craft? Good to hear she pumps and runs.
The one time I had carb issues with mine it was flooding at the boat ramp in Homasassa at the beginning of a fishin trip. I managed to take one of the carbs off, free up the needle and put her back together. I mean end wrenches, crescent wrench and a screwdriver. Went 40 miles that day. Never had to go back in the carbs and it didn't even take a gasket set.

[csvencer]

Yup. Picked up an 82 McKee 14 with it. She's taking a splash this weekend, first time in the water with her, hope for the best!

-Svence

[csvencer]

And so it continues...

Ran her this evening and can't get past 3/4 throttle or she dies out. Up to 3/4 everything seems okay but once I bump it past there it stalls out. Even if I just throw it WOT and back she fades and then comes back to life. Any thoughts? There is no high speed adjustment on the carbs so i don't know where to go from here.

Here's where I stand...
Brand new tank, fuel line, primer bulb and fuel pumps cleaned so I don't think there is a shortage of fuel. Also it won't even try WOT as if it has gas and then runs out, it just dies as soon as I move it up past 3/4.

-Svence