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70 HP motor seems underpowered. How do I troubleshoot.
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<blockquote data-quote="Reelized" data-source="post: 423579" data-attributes="member: 2163"><p>First place I would start is with the throttle linkage.Make sure you have full throttle movement . I have owned a a lot of johnson outboards. One common problem is the timing linkage sticks. When you apply throttle the linkage opens the carbs but there is a secondary linkage that follows the throttle linkage when when moved. It has a rod that goes up under the flywheel to adjust the stator to advance the timing. If it does not advance you get no power and low rpm. </p><p>With the engine have some one move the throttle forward and make sure the part I circled in yellow move forward also. That will show if your timing is advancing as it should.</p></blockquote><p></p>
[QUOTE="Reelized, post: 423579, member: 2163"] First place I would start is with the throttle linkage.Make sure you have full throttle movement . I have owned a a lot of johnson outboards. One common problem is the timing linkage sticks. When you apply throttle the linkage opens the carbs but there is a secondary linkage that follows the throttle linkage when when moved. It has a rod that goes up under the flywheel to adjust the stator to advance the timing. If it does not advance you get no power and low rpm. With the engine have some one move the throttle forward and make sure the part I circled in yellow move forward also. That will show if your timing is advancing as it should. [/QUOTE]
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70 HP motor seems underpowered. How do I troubleshoot.
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