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  1. J

    Quick & easy Q- that's the proper compression for a 2004 Merc 15hp?

    :rolleyes: Any and all info Much appreciated!! Ps any way to confirm it a15 other then the cowl & serial plate? Mid section looks more weathered then the top, as if someone swapped it out the middle section (including the serial plate) and added a new 15hp cowl. Thx!
  2. J

    Old Merc 7.5 / 9.9 clunking & banging @ WOT?

    Hi all! First time to the forum and was hopping i Someone could help me solve this mistery. I just bought a 79 merc 7.5 for me and my young son to go fishing. Anyway, I put it on a drum and it Runs great at idle and half throttle, but at wot upper unit starts funking/banging - like a clunk that...
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