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Old 01-27-2008, 09:22 PM   #55
Dukeryder
 
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Joined: Dec 2005
Location: Pinewood Springs, Co
Oddometer: 7,453
Are these bikes prone to the engine bearing failure? Also what's the difference between the motor of a 620 and a 640? I thought the 640 was 625cc? Is the 620 motor basically the same as a 640 with a few less ccs? Or is there more substantial differences?

There's a 1998 620 ADV over in TX that I was giving a serious thought of buying.
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