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    Piston for Yamaha 5bs 661 5hp 2 stroke 1970 ?

    Still search piston for this engine... I don`t found yet. or something similar.Anybody has an ideea what shoud i do ?
  2. I

    Piston for Yamaha 5bs 661 5hp 2 stroke 1970 ?

    I`ve checked inside the crankcase and the missing piece of piston it doesn`t exist.I called the last owner and he sayd he changed the cylinder and the head.So now i had an engine with good crankshaft,good cylinder and head but with the broken piston.Practicaly he put the broken piston inside the...
  3. I

    Piston for Yamaha 5bs 661 5hp 2 stroke 1970 ?

    the cylinder is ok.Probably was changed and when found cracked piston he put all toghether and sell the engine... I will atach more photos
  4. I

    Piston for Yamaha 5bs 661 5hp 2 stroke 1970 ?

    Hi ! I purchased recently an yamaha 5bs 661 5 horsepower 2 stroke from i don`t know maybe 1976 year? When i disasambly to reconditioning the engine i found an cracked piston with a missing part between piston rings...Inside the piston it`s marked YAMAHA IZUMI 5 and on top it`s 510 K 97..Can...
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