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    91 force 90hp tachometer setting

    hi I put a 91 force 90hp on a boat that had a 115hp merc. The tachometer in the boat seems to be reading way to high. The tachometer has a dial on the back with about 8 or more settings on it. How do I set it properly? Or do I just guess? It says I'm running over 1500 rpm at an idle. Thanks
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    91 force 90 hp dual exhaust leg oil and impeller change

    hi, how do I change the leg oil and impeller on a 91 90 hp dual exhaust us marine force outboard? I read some posts on it but they weren't for this particular year. Any help would be appreciated Thanks
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    1991 force outboard 90 hp prop

    Hi I just aquired a 1991 force 90 hp outboard engine. One problem it came with no prop. I talked to a local marine shop and was told i need a force prop and nobody makes an aftermarket prop for this engine. He wanted to charge me $400 for a new prop and it would take him 4 weeks to get it...
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