I have a simplicity brodmore 22hp intek. When I start it , it smokes blake and will die unless I engage the blades then it will run fine tillI shut it off , then it will do the same thing.

Hi,
Not familiar with an electric choke on this model. They do have an anti-backfire solenoid.
Can tell you that for ever what reason, you have an overly rich mixture that causes the black smoke. A bit is normal at first cranking. When you engage the deck; you are "loading" the engine which takes more fuel and thereby eliminates the rich condition.
Peace,
Clarke

Hi,
Not familiar with an electric choke on this model. They do have an anti-backfire solenoid.
Can tell you that for ever what reason, you have an overly rich mixture that causes the black smoke. A bit is normal at first cranking. When you engage the deck; you are "loading" the engine which takes more fuel and thereby eliminates the rich condition.
Peace,
Clarke
This has a thermatic solonoid that has a linkage hooked to it. If I don't engage the deck the engine will choke out and die.