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  1. 1

    Motor only reaches 3/4 speed and RPM's

    I have a 3 liter, 4 cyl, 125hp 1999 Mercruiser. My motor will not react like it shoould, it dogs out when I put the hammer down. It will eventually reach 3/4 speed, what use to be 40 mph is now 30 mph. Same with RPM's. <br />Here is what I have tried already<br />1 tank of 93 octane, cleaned...
  2. 1

    Motor sputters, never reaches full speed

    I have a 130 hp 3.0 liter Mercruiser with a Mercury Alpha 1 outdrive. The gas was probably as low as I hav ever had it, gauge says 1/2 tank. The boat started out OK, one good run across the lake, then I backed down and the engine sputtered out when idling. Then the boat rattled the rest of the...
  3. 1

    Engine sputters and runs 15 mph slower than normal

    I have a 130 hp 3.0 liter Mercruiser with a Mercury Alpha 1 outdrive. The gas was probably as low as I hav ever had it, gauge says 1/2 tank. The boat started out OK, one good run across the lake, then I backed down and the engine sputtered out when idling. Then the boat rattled the rest of...
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