williamperu

Hello I have a Yamaha XTZ 125 and it has great acceleration but I want to go faster. I mostly use it to travel to remote towns in Peru which I have more than enough power and top speed for, but my problem is on the highway it tops at 55mphand that's winding it all the way out and it feels like it doesn't have any more torque to give so without getting more power adding an extra tooth or two isn't going to help. My plan is to add a bigger exhaust and carb to it, but I'm worried about blowing it up. It's still definitely under warranty but if I blow it up due to aftermarket parts I dought it is covered. do you guys have any idea of what I can do to make it faster is there a washer in the exhaust I can drill out? also, I love to ride in the dessert but every now and then I hit a really soft patch of sand my front tire digs into the sand and I feel like in going to wreck is there anything I can do to my bike to fix this? Any help is extremely appreciated!!!!!!!!