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Compression test 90 hp Yamaha #8822932 04/13/13 09:00 PM
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Fishing on a string Offline OP
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I just did a compression test 2 cylenders were above 90 and one was on 90 psi. Is this a good range for this 1997 yamaha 90 hp motor. If not what should it be? any comments welcome.

Re: Compression test 90 hp Yamaha [Re: Fishing on a string] #8823175 04/13/13 10:59 PM
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kingdad101 Offline
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what does 'above 90' mean..anything with in 10% is good..

Re: Compression test 90 hp Yamaha [Re: Fishing on a string] #8823323 04/14/13 12:06 AM
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Just a couple lines above it. It was well under 10% Thanks for the help.

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