Re: Old YZ490s
my experience with a YZ490 was when my friend put the motor in a YSR50 in 1992. a YSR50 was the baby crotch rocket with 12" wheels that were popular in the early 90s. it shifted upside down, it had a 9" extended swingarm, and a car rear tire from a festiva, and to start out you had to lay clear over the handlebars or the bike would just flip. he was bananas. I still have his ysr but no longer have the yz490 motor. crazy fast though
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