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Recent content by gamparano

  1. G

    Tachometer not reading properly

    1986 Riviera Ebbtide 4.3L OMC Cobra. Have a 14 1/4 X 17 prop. When idling the tach reads between 600-700 RPM. The engines runs like a dream. Starts right up, no problems. Checked wiring on Tach. Grounds are good, hot is good, sender good. Get it on the lake and when I go to almost WOT the Tach...
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