The IT 490 is a sweet trail bike. Amazingly smooth tractor power. The ports were dimensioned differently, different flywheel weight, etc. from the YZ. The down side is that they ping. But, there are tricks to fix that(I'm too old to remember them).david wrote:I wouldn't want to ride it in the woods. The YZ would stand straight up in every gear with just a wick of the throttle.
A photo of my old 490 is in my gallery.