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    Yamaha 90 1987 hi compression in crank case blows out

    "HI Back to my next problem wi "HI Back to my next problem with the Yamaha 90 1987 2 str. After putting it back together,(did not overhaul the actual motor) only the head gasket etc replace after servicing, I now get a lot of sump compression and I get blow out through the lower drive shaft oil...
  2. F

    Siezed drive shaft stuck in powerhead unable to remove

    "I have a Yamaha 90hp 1986 tha "I have a Yamaha 90hp 1986 that has the drive shaft siezed to the power head. I realy mean she's stuck. All 11 bolts have been removed and the rear does seperate a little but the crank is well and truly stuck. I have with only just not broken anything, used a...
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