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Compression on 89 Suzuki 140 HP

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  • Compression on 89 Suzuki 140 HP

    I'm thinking of buying an 89 Suzuki 140 hp with a jet that was completely rebuilt 6 years ago. What would be the proper range for pounds of compression in the cylinders. Thanks,Mark

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    Re: Compression on 89 Suzuki 140 HP

    I'm sure 135 compression is the # for a new or refurbished OB with all cylinders being within 5-8% of each cyl.

    My 140 cyl. are 134 +- 3#

    My 115 (same block,bore etc.) are about 110 +-per cyl....runs fine.


    You dont want a cyl/s extremely lower than the others

    Hope this helps.

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