Cold engine surging

[Firespooks]

I have a 38” Husqvarna lawn tractor with a 18 1/2 HP B & S on it. When it is cold out side and I start it , the engine surges until it is warmed up. Then it runs smoothly. Is this normal ? Or should I be maintaining something ?

 

[ILENGINE]

That is actually normal especially with the newer EPA mowers because they run too lean when they are cold.. I have seen several newer engines that won't even start below 50 degrees without outside assistance.

 

[Auto Doc's]

Does it have a manual choke or automatic?

 

[Firespooks]

Does it have a manual choke or automatic?

Manual

 

[slomo]

When it is cold out side and I start it

What temp in F are you calling cold?

 

[Firespooks]

Around 50 degrees.