Mercury 20HP drive problems

merideanman

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Joined
Aug 7, 2010
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1
I have a 20hp Mercury Kiekhaefer Thuderbolt ignition outboard. Serial # 3067135.
When I put it in forward gear, makes a loud clicking noise that getds louder when you apply more gas. It does seem to engage but it sounds like it isn't fully engaged in forward only. Reverse engages but has little thrust no noise when in reverse.What can be making that noise?Help!
 
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