My 99 warrior starts and idles fine, but will not rev up above a fast idle.  Above idle it sounds like a typical machine that is too rich on the mixture, however there is no black smoke out the pipe. Black box? any ideas?  A few days ago it ran fine, and the only thing that we did was roll it up a steep ramp, 45 deg angle, into and out of a pickup.  Anyone run across this?  

maybe if u want to rev something up get a 2 stroke  

that was very helpful blaster2166. i'm sure that's going to help him solve his problems.

zzwarrior, how long has it been since you cleaned the carb? and have you checked the plug? not that an incline should cause problems with either of these, but it may be a case of coincidental timing.  

well you are right to think it is the carb Shado, sometimes if there is trash or water in the tank then an incline will cause it to get into the fuel line more readily.

thus getting into the carburetor.

i would suggest removing the carburetor and then removing the bowl from the carburetor and inspect it for dirt or water or fuel gelling.

if you find any there i would clean the carburetor out really good and check the tank for the same problems.