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  1. MassillonBuckeye

    full throttle issues.. Merc 7.5

    Motor was running fine. Have run about 2 tanks of gas through it(new tank/lines/50:1). Last two times I've had it out, I can't throttle past about half. The power dies. Seems to bog. Doesn't stall. If I back off the throttle then gun it, it usually has all its power until the RPMs catch...
  2. MassillonBuckeye

    Information regarding Ethanol and your fuel system.

    http://www.boatingmag.com/maintenance/there-killer-your-boat Stumbled across this link, and I'm sure it's been posted before but thought I'd share.
  3. MassillonBuckeye

    Milky oil atop water pump

    And a little on the drive shaft/slinger seal.. I just re-lubed the LU and changed the impeller last week. When I took off the LU a little water poured out then I saw the milky stuff. Drained the LU lube and it wasn't milky at all. Dark. Which surprised me a bit since I just put brand new...
  4. MassillonBuckeye

    Carb ID?

    7.5HP Mercury OB and I was told it had a 10HP carb installed? Can you tell me what I have? It doesn't really match what's in the service manual I bought. Is there supposed to be a gasket blocking the two outer fuel intake holes on the side there...
  5. MassillonBuckeye

    What seals the lower unit to the rest of the motor?

    Wondering what keeps water out ofthe water pump, drive shaft and shift linkage?
  6. MassillonBuckeye

    1975 Mercury 7.5 progress report

    Acquired a 1975 Mercury 7.5 with the thunderbolt ignition yesterday that was sitting probably 15+ years in his basement on a horse. Almost still has showroom shine! Am hoping for very little trouble getting her water ready and plan on impeller and checking out the carbs. Had an issue the rope...
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