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  1. R

    what should compression be on a 1985 v6 150

    I can not find specs for compression. Im looking on the online manual. Is the merc manual the same for mariner. My mariner 150 runs great when cold, when engine warms up looses power, still cranks ildes great, just not enough power to plane, will run great till you stop, then you have to let...
  2. R

    mariner 150 v6 1985 oil inj. ?

    I bought a boat 150 v6. Has no oil ijection but has lines going from block, cylinders to the front of the intake plate ,front the reeds. does it even need the lines, can I just plug the fittings.
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