Okay so I just picked up a 2001 YZ426F, the guy I bought it from started it for me twice and after I was able to start it once and then never again since then. I read up on hard starting 426s and followed some of the suggestions. I checked the valves and they were in spec. Then I cleaned the carb. I also made sure to tighten the fuel screw all the way and then back it out 1.25 turns. I also replaced the spark plug. Still won't start and I'm stumped. I am also following the correct starting procedure. I really don't want to bring it to the shop so any help would be amazing.
The bike is stock and I am operating at or below 1500 ft elevation.
Edited by fmx09, March 27, 2014 - 06:21 PM.