crankcase

  1. J

    Oil Leak Under Crankcase

    Please help I’ve been digging but can’t find info I need to know what these two bolts do / are or better off why are they leaking?? Can someone help??
  2. jackolaid

    Piece Broken off inside Crankcase

    Hey all, doing a rebuild on the engine for my 1981 CB750. Finally split the case and found a small piece broken off right above where the oil filter screws in. My question is if this is fixable? Able to be welded or repaired in any way? Want to know before I continue along with any further...
  3. F

    Remove rotor to split crank case?

    I’m trying to split the crank case on a 1980 CB750F, it seems like the rotor is catching lips on the crank case and keeping me from pulling the bottom off. Do I need to remove the rotor to split the case on DOHCs or am I doing something wrong?
  4. M

    Crankcase casualty

    Hello everyone, my user name is magnamatters. I own a 1982 CB900C that I am bringing back to life as the compression is low on all cylinders (about 90-100 lbs.) Some dirt fell into my crankcase when removing the cylinders on my 1982 CB900C so I split my first crankcase. I was pleased to learn...
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