I've had a Prima Pipe on my 125 for 2 or 3 months and on April 10th, I changed out the stock #92 jet for a #95 to try to get the tiniest of performance out of the pipe. At the highest elevation I was getting some backfire, although when I did a similar ride before I also got backfire, but not as much as I did on this last trip. I started thinking that I was running to rich, but when I pulled the plug this morning it doesn't look to bad. The plug has been in for almost 1000 miles and its been jetted for 475 of those miles. What do you think?


When I jetted my Buddy I did get a tiny performance boost, but I'm starting to think it wasn't worth it. Especially, since I picked up a Blackjack this past weekend too. Here's a pic of my Blackjack.


Anyways, should I just put things back together the way they were? My 125 will be my daily driver anyways.