Did the 450 2004 YFZ and Wr450 2003 have the same cylinder????? Because i put a wr450 2003 crank and if i put a wr 450 piston what the defference?? the 450YFZ have 62mm of Stroke And The WR Have 63.4 mm thank u very much!!!!!!!!!!!!!
I'm rebuilding a 2003 wr450f and I got a 04 crank it seems the piston kit I got for it the wrist pin and cage bearing to the piston rod won't fit but I took out the brass sleeve and the wrist pin fits good but won't make a full turn because the piston slightly hits the crank is it possible sand/grind the spots where the piston hits crank down not sure what to do
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