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Tech question...help???
I have a 1993, 25 ft. Searay. It's got a 7.4 Mercruiser Bravo (454
Chevy). It runs great untill I hit about 3000 rpm, 3/4 throttle, then it hesitates, and sputters. I've replaced the 4 barrel carb, sparkplugs, wires, fuel filter, and put in fresh gas. No improvement. It seems to run good when running on two barrels, but when the other 2 kick in, the motor chokes. The local boat mechanic hasn't got a clue, so any help appreciated. |
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