190HP Mercruiser LOST POWER - HELP

imbowmaster

Recruit
Joined
Aug 10, 2003
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2
I have twin 190HP 4 cly 4 barrel carbs in my '86 2660 Cruisers Vee Sport. Both engines were working great up until a couple weeks ago when the port side engine lost power. It will only get to ~ 3000 RPM at full thottle under load. I had a mechanic tune-up both engines (points, plug cap, etc) and I changed both carb and fuel pump fuel filters and clean the carbs with no improvement. I also ran about 150 gallons of gas through it last weekend, with still no improvement. I'm considering new plug wires and a coil?? Any other suggestions to get power back to normal would be greatly appreciated. :(
 
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