1984 Mariner 150 runs but lacks power

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okstatehuck

Recruit
Joined
Mar 15, 2006
Messages
1
I have a 1984 Mariner 150 the motor will start and run, but lacks the power to get on plane.<br /><br />I have checked to make sure the carburators open full and in sync. Compression is good. Carburators have had cleaner ran through them as well. The wiring harness for the stators has the plastic covering cracking on them. Where do i go from here?? <br /><br />I am located in oklahoma so if anyone knows of a good boat mechanic i would greatly appreciate the help.
 
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daveshnick

Recruit
Joined
Mar 19, 2006
Messages
1
Re: 1984 Mariner 150 runs but lacks power

i have the same type of problem my boat starts and idles and will troll at low speed i try to get up on plane and it stalls out or boggs the alarm beeps and then can be hard to start but allways does.ive checked fuel lines new ball pump mechanic checked compression has no clue i think it maybe the oil injection pump regulator but i'm still trying let me know if you find a solution thanks
 
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andy6374

Lieutenant Commander
Joined
Aug 4, 2005
Messages
1,617
Re: 1984 Mariner 150 runs but lacks power

Two things. Dirty carbs or ailing fuel pump.<br /><br />The carbs can't be cleaned by simply runner cleaner through them. They need to be taken off the engine, disassembled, carb cleaner and then every orfice and passage blown out and dried with compressed air. Then reassembled with new gaskets.<br /><br />Checking the fuel pump is easy. While giving it throttle, have someone pump the primer bulb. If this saves the engine from falling on its face its time for a fuel pump rebuild.<br /><br />Good luck
 
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