14.5 HP Briggs won't stay running.

[t.crawford714]

Ok so I've been lurking and now I need help. I have a fairly new Poulan Pro with a 14.5 Briggs in it. It doesn't stay running after we stop spraying starting fluid. It'll run forever on starting fluid (if it was cheaper I'd just run that instead of gas :laughing I've never really worked on carbs before so I'll end up with more questions but the carb is clean, it's got plenty of gas in the bowl. Why won't it stay running but won't run on gas? Could the spark plug not be burning hot enough? I just need suggestions and I can check. Thanks in advance.

 

[jmurray01]

There is no doubt in my mind you have a clogged carburettor.

 

[reynoldston]

Stuck needle valve under the float

 

[t.crawford714]

I'll take a peek but the Carb is spotless

 

[jmurray01]

I'll take a peek but the Carb is spotless

It may be spotless outside, but that doesn't say a thing for the interior condition.

 

[reynoldston]

Stuck needle valve wouldn't be a dirt thing, They have a rubber style tip and with the new style gas they stick into the needle seat. Time for a new needle valve because it will just keep on happening.

 

[t.crawford714]

I did pull the Carb off. It is spotless on the inside. No gunk. How do I check to see if it us a stuck needle? What do I do if it is stuck?

 

[t.crawford714]

Oh, ninja'd. How do I check if it is a needle valve?

 

[jmurray01]

I did pull the Carb off. It is spotless on the inside. No gunk. How do I check to see if it us a stuck needle? What do I do if it is stuck?

I see what you mean.

Have you checked your fuel filter ? It may be clogged with old fuel if it has been there for a while.

That, or a stuck needle.

 

[sss]

Is your fuel pump getting enugh fuel through to the carb?