Vintage Dirt Bike Q & A

From the Swap Meet...

Can anyone tell me the difference between the lower end of a 81 cr450 and the 82 cr480 are the bearings and seals the same? My cr450 needs crank bearings or the bearings are spinning in the case and cant find them any where. Any help would be appreciated...

If you visit http://www.cmsnl.com you can view a parts fiche/catalog. It will show where parts have been superseded and if they have the later parts available. In this case...

91009-HC0-0003 Bearing 26x68x18 (2) - shared with CR480R and CR500R models
91201-KA4-004 Seal 38x58x11 - shared with most CR250R and CR500R models from 1980s and 1990s
91203-444-003 Seal - shared with 1982 and 1983 CR480R

Parts are all available, but priced in Euros and therefore expensive. However you can use the dimensions and part # to source elsewhere.

BTW, this took me approximately 10 minutes in Internet time.

_________________
Michael Stiles
1979 Honda CR250R Elsinore | 2006 Husqvarna SM510R | 2007 Service Honda CR500R-AF

crank bearings are 63/28 C3
you can get them and the seals in a bearingshop
or look at ebay, someone sells bearing/sealkits

_________________
80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250