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
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New Member
1990 90hp force popping sound out the third carb.
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
Advanced Contributor
Re: 1990 90hp force popping sound out the third carb.
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
PARDON THE WRITING, FOR SOME REASON I CAN'T USE PARAGRAPHS. THE SENTANCE'S ALL RUN TOGETHER !!!Ethanol is messing up a lot .It's delaminating the inside of older hoses causing clogs in the carbs/injectors and fuel filter.
Oh yea DON"T buy any parts from boats . net Worst company on the net.
Outstanding Contributor
Re: 1990 90hp force popping sound out the third carb.
Pull the carb and take a close look at the reed valves.
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