1. 

   JamieThorpe New Member

   Messages:

   30

   Rides:

   Yamaha Aerox

   Ok, im looking at the big bores and i want to go for the big ones the mhr 86 or 77 maybe even a polini 88, i was just wondering what work has to be done on the crank case to fit them?

    

   JamieThorpe, Aug 19, 2010

   #1
2. 

   tErr0 Administrator Staff Member

   Messages:

   5,816

   They physically don't fit. Need to be milled out to fit in the cases and needs good proper flowing of the cases to get enough mix into the kit.
   
   http://www.malossistore.be/Archivio/MONTAGGIO/73 9128_001.pdf
   
   Page 17 tells you exact specs of what needs to be done in some half arsed translated italian.

    

   tErr0, Aug 19, 2010

   #2

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