I've got a couple questions, I bought a 94 gs500 that wasnt running and I got it running and rideable, I need to find out why my start button isn't working. An It's running a little lean (hanging rev). It's a 01 carburetor the air mixture screws are 2.5 turns out and the needle clip is on the 2 clip from the top. Any suggestions to adjust. I sprayed carb cleaner on the gaskets. No air leaks. And what's the top speed that's comfortable in rpms? It's my first sport bike I've grown up on dirt. It seems I'm in 3rd-4th at 40-45mph. Is that normal?