Won't stay running

M

Muldrick

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Jun 15, 2017

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• Jun 28, 2019 / Won't stay running

• #1

I have a Sears push mower with a 5.5 or 6hp engine.
It would only run if I continued pushing the fuel bubble or sprayed carb cleaner into the carb.
Ok, easy enough, clean the carb out should fix it, obviously a fuel restriction.

Cleaned the carb, jets, needle and seat, etc. Does the same thing!

I then replaced the carb and it STILL doe the same thing....makes no sense.
I had already replaced the fuel and filter.

Does anyone have any ideas what the problem might be?:confused2:

 

S

SeniorCitizen

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Aug 28, 2010

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• Jun 28, 2019 / Won't stay running

• #2

First leg of the fuel's trip is from the tank to the filter. Consider checking that even though the primer says it is.

 

P

platefire

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Jun 27, 2019

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• Jun 29, 2019 / Won't stay running

• #3

I worked on a friends Honda this week and cleaned his corroded carb. When I put the carb back on it ran a minute and died. I double checked and no gas coming out of fuel line to carb. I found the fuel filter was on backwards and once I reversed it everything was flowing like it should and staying running. Bob

 

M

Muldrick

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• Jul 25, 2019 / Won't stay running

• #4

If I pull the fuel line off the carb, fuel poors out, so there certainly seems to be no delivery problem

 

Scrubcadet10

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• Jul 25, 2019 / Won't stay running

• #5

could it be a cracked intake manifold/tube causing a vacuum leak?