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1990 90hp force popping sound out the third carb.

jfishin

New member
when engine is at an idle the third carb is poppin. goes away when throttle rises and then starts again. Ran some engine tune through the carbs and it didnt change anything. Does anyone know what im talking about. Thanks
 
Fill out the profile.Do a compression test.Should close on all 3.Any more than 10% post that.Then reset the air screws.
In the water, in gear,motor warm.Before you begin,1st turn the air screws in till they just bottom out(GENTLY) then out 1 full turn.Remember what each was set at and if it's way different post that.
Then reset them,turn each in till it starts to miss.cough,buck then out 1/2 turn.Repeat on the other 2.J
 
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