96 johnson v4 2-stroke Boggs down.

Win.308stealth

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Aug 4, 2015
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About a month ago bought a '96 Fourwinns with a '95 Johnson v4 2- stroke. Ran decent at first but started acting up. It would sometimes go on plane full speed, others time it would go but won't go full power. The rpms won't go up more than half throttle, gauge doesn't work don't know how many rps. Also had a hard time starting, it would take forever, sometimes only with starting fluid. Took to a boat shop, they cleaned the carbs, and now it starts and rums like any other well cared for oitboard. Took to the lake, started the boat, launched, any took off like there is no tomorroe. Ran really good, for about 3 minutes, then it would bogg down again. And won't be able to go fast again. Until it cools down all the doem, then same thing.
just couldn't find info on this subject. What could be wrong. Oh yeah it can idlle and reverse in full power, just not forwsrd.
thanks in advance paul
 
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