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    Spark Plug

    I have a 96 Mercruiser 7.4 on a Crownline 225br. I'm not sure what ignition I have. The serial number is F810329. Mercruiser shows the spark plug gap could be .35 or .40 depending on the ignition type. Can anyone tell me what my ignition type is and what the gap should be?
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    Fuel Pump Wiring

    Hello. I'm in process of trying to get this new to me boat running safely. My question has to do with proper wiring of the fuel pump. I have a 1996 Crownline 225br with a 454 Mercruiser. (serial # F810329) I replaced the electric Edelbrock fuel pump 2 times. The previous owner had wired it...
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    Click No Start

    I have a 1996 454 Mercruiser. It wont turn over. I have 12.8 volts to the starter solenoid when I turn the key. So I took the ground wire off the battery/engine. It wasn't in bad shape at all. I cleaned the connectors. I removed the new starter and sanded were it butts up to the block since I...
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