CR250 crank bearings

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    • October 26, 2013 at 5:59 pm #13856
      nigel cooper
      Participant

      Thanks again Ian,

      I guess Ill have to get them from honda.Im buying bearings often at work and can get great prices for myself due to the money we spend at our supplier,but I learned from a previous post of yours that the CR250 crank bearings are special and I must have them.(PS. turns out I`ll have to buy a honda crank as well.When I got the engine apart I was shocked to find a Wiseco crank.I was assuming a honda crank and sending it out for rebuilding)oh well,i have all winter

       

      nc

       

    • October 26, 2013 at 5:14 pm #13854
      Ian Harrison
      Participant

      Hi Nigel

      CS30 is an O/E bearing number and only supplied to manufacturers under that reference and not supplied through the bearing resellers. It is a special 2-stroke crankshaft bearing designed to operate in the limited lubrication situation of a 2-stroke engine. It has a special heat-treatment of the bearing cage and specific running clearance.

      Honda Part #: 91008-KAE-731

      Never use the general engineering bearing 63/28 C3 or C4. These get sold a lot on Ebay etc. and you probably get away with it in a crosser.

      But then you knew all that ;-)

      Best Regards

      Ian :-)

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