Lawn Mower ???

[jteneyck]

Drain the carb bowl first, carefully to see if it has water or dirt in it.   Does it have a fuel filter on it to check ?  Roly

OK, I'll check to see if that's it.  I think it does have a fuel filter actually, and I can replace that, too.  I don't see how the problem would go away after the engine warms up if either of these were the problem, but they are easy enough to check/clean/replace.  

John

[jteneyck]

Update:

No water/dirt in the fuel bowl.  No filter in the fuel line.  I checked the air vane and all the linkages again and can't see anything wrong, but it still runs poorly for about 2 minutes then comes up to speed and runs great.  Hot restarts are perfect as well.  

I have not yet tried blowing out the EGR line, or at least what I take that hose to be for that comes into the back of the air filter housing.  

John

[Dave Crow]

Update:

No water/dirt in the fuel bowl.  No filter in the fuel line.  I checked the air vane and all the linkages again and can't see anything wrong, but it still runs poorly for about 2 minutes then comes up to speed and runs great.  Hot restarts are perfect as well.  

I have not yet tried blowing out the EGR line, or at least what I take that hose to be for that comes into the back of the air filter housing.  

John

Hey John,

Which engine do you have? I have a tall wheel string trimmer that surges when the jet is clogged. I use a sewing needle to clear it.

check out this guy. 
https://www.youtube.com/watch?v=JOI293d8XUg

Dave

[splinter7612]

I have a Toro PP mower about 10 yrs old that was hard starting and when it did run it ran like chit, I bought a $10 chiwanese carb from Amazon and now it starts on the first pull and runs great.