by Pamela
(Lawrenceville, Ga 30044)
I call it flutter but any speed below 2000rpms it runs rough. Not always, not everytime that's been going on for two years. Mechanic at my marina doesn't know what's wrong. Then another problem started at faster speeds going pum pum pum like a backfire. I took it to another mechanic. They replaced fuel pump regulator, fuel cooler, cleaned injectors, plugs, filters...still doing the same thing. Does anyone have any idea what the problem is?
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