Morning start issue...

[GJBenn85]

For the past three days, my FX45 has "struggled" after it starts up. The RPM gauge moves up and down 3-500 RPM. I can rev the engine and it will then be fine, and it has only done this during the first start of the day after sitting 12-15 hours. The rest of the day, there will not be any issues and the engine still runs like a bat out of hell.

Any ideas what could cause this?

 

[Bklynjohn718]

try cleaning the throttle boddy

 

[jbaker1121]

it can also be the cold weather

 

[GJBenn85]

It has not been that cold, maybe 65º when it has occurred.

 

[turbocad6]

dirty throttle body for sure would be my guess...