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2002 Yamaha TLR 90 Compression

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  • 2002 Yamaha TLR 90 Compression

    According to published specs this engine should have 134PSI of compression. I warmed the engine up and acquired the following readings. #1 = 120 #2 = 115 and #3 = 120. The engine runs fine and the plugs look great. Should I be concerned?

  • #2
    That is very good compression, no worries.
    Regards
    Boats.net
    Yamaha Outboard Parts

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