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Evinrude 25 wot timing issue? surging
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<blockquote data-quote="Joshsmith2005" data-source="post: 440089" data-attributes="member: 22767"><p>1993 evinrude 25 that was converted to 35 is surging above just over 1/2 throttle.the cam plate is moving back and forth causing my timing to advance which is causing the surge.if push and advance the timing myself it will stop surging and boat will rev up and run great.i get 4700 rpm then surge kicks in but if i hold and advance timing myself i can go to 5600.i dont try to advance any further than this while driveing.can you guys tell me why its jumping?ill attach a pic so you can see cam im talking about.i dont have video of it surging.</p></blockquote><p></p>
[QUOTE="Joshsmith2005, post: 440089, member: 22767"] 1993 evinrude 25 that was converted to 35 is surging above just over 1/2 throttle.the cam plate is moving back and forth causing my timing to advance which is causing the surge.if push and advance the timing myself it will stop surging and boat will rev up and run great.i get 4700 rpm then surge kicks in but if i hold and advance timing myself i can go to 5600.i dont try to advance any further than this while driveing.can you guys tell me why its jumping?ill attach a pic so you can see cam im talking about.i dont have video of it surging. [/QUOTE]
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Evinrude 25 wot timing issue? surging
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