Okay, thanks for the info. I'll give the 155 a test and see how the plugs look. It was definitely smoking and spooging quite a bit. Would foul a plug about every 3rd ride or so. But this is my first 2 stroke (and 2nd bike ever) so I didn't have anything to compare it with and didn't realize that it might be so poorly jetted.
As for where I ride around Meridian, I usually head up into the foothills around the valley, out to the Danskin Mtns, or down to the Owyhees when it's early spring or late fall. I actually grew up in Pocatello, but didn't have a bike when I was there. I still have friends and some family there, so I make it back occassionally for a visit and usually sneak in some fishing or bird hunting.