1990 Johnson 40hp = Smoke and Primer

[Scumfrog]

Tried starting the motor after garaged for a year.

Will not start, or stay running, without the primer (key push) pushed in. Let the primer out and it dies.

Need to keep the throttle 1/2 - W.O. in order to start.

When it does start, billows white smoke like sea foam.
Then runs for only a few seconds and dies.


I cannot find posts pertaining to both the primer and smoke problems. Does this sound like a minor tune up fix or something larger?

1990 Johnson TJ40ELESF (vro)

[seakingbob]

Sounds like it a gas problem,Must likely it's the carbs gumed up.You might want to rebuild them.

[tashasdaddy]

old gas, contaminated carbs. if it runs with primer that runs out fuel pump.


smoke. it is a 2 stroke, in a confined area.

[countvlad]

Tried starting the motor after garaged for a year.

Will not start, or stay running, without the primer (key push) pushed in. Let the primer out and it dies.

Need to keep the throttle 1/2 - W.O. in order to start.

When it does start, billows white smoke like sea foam.
Then runs for only a few seconds and dies.


I cannot find posts pertaining to both the primer and smoke problems. Does this sound like a minor tune up fix or something larger?

1990 Johnson TJ40ELESF (vro)

i agree with the guys: first new fuel then rebuild the carbs...

when you push the primer key you are bypassing the carbs and dumping fuel in the intake manifold... it also sounds like its starving for fuel... and by keeping the throttle 1/2 you might be flooding it or running it lean.. thats why it smokes like crazy

[Scumfrog]

Thanks for the quick replies!
I'll get the carbs off and clean them up.
Thanks for the links also.