worries

im looking to upgrade many engine parts. i may get a bigger carb. my concern is that whatever manifold i get will either hit the frame, or stick out too far. IF I FALL on the right side of the bike, my air filter would be toast, or even crack the manifold off. i have a k&n style filter...

I've been working on making a gas tank out of an old CO2 tank for a paintball gun and I Can either mount it vertically, or horizontally. I would prefer horizontal but the only place is in direct path of the exhaust. Is the hot exhaust on a gas tank that's pretty thick bad? I've seen some of the...