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  1. V

    1978 700 series 70hp mercury high idle

    Removed entire fly wheel… was the only way to remove the trigger assy. Flywheel spline has a key so it can only be fitted in one position. When I pull the manual choke out 3/4 the revs die down to about 1800rpm. I unscrewed the mixture screws to 4 rotations out and archived the same result but...
  2. V

    1978 700 series 70hp mercury high idle

  3. V

    1978 700 series 70hp mercury high idle

    Hi all, I cannot work out why my engine is idling very high..(3200rpm) I have removed the choke linkage I have checked the butterfly’s which are working how they should ( opening fully- and shutting completely - they are also in sync. Throttle linkage from the controls is not even touching the...
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