Black Smoke on first engine start up

[High Flyer]

Hi Guys (Maxum 18 - 3ltr engine)

What could be the cause of black smoke for a couple of minutes after a the first start of the day

John

[mmwjr]

Black smoke is a sign of too much fuel. Carburetor too rich or dripping after the engine is turned off. Do you have a hard time getting it started?

BTY Blue smoke would be burning oil and White smoke would be water.

[High Flyer]

Mike
Three pumps on the throttle and she starts good, the engine does have a tendency to 'jump around' for a few minutes too ~
John

[mmwjr]

John,

Do you have a hard time restarting the engine after running for awhile then shutting it off at anchor?

[High Flyer]

After the first start, a restart is good (this past weekend did 20 miles, with a break half way for lunch, ran sweet) ~

[mmwjr]

What you have described sounds like valve seal/guide leaking oil down. This typically only blows smoke when starting but the smoke would be a dark blue not black. Have you tried smelling the smoke?

[High Flyer]

Thank you: that sounds like the cause and maybe it is blue smoke (aged eye sight), and I must admit, I'm not into sniffing exhaust smoke
Thank you all ~~