[reconranger]

Had you asked before your purchase, I would have recommended AVOIDING the Warrior!!!

Could be a carb problem. Never hurts to clean a carb anyway! Pay particular attention to the idle/slow/pilot jet. These get easily clogged by scum when the fuel sits in the carb. This makes you lean overall.

Another possibility is that the reverse rev limiter is sticking on. While I have not owned a Warrior in 15 years, I do recall that this was an issue with this machine! Don't recall the details, but you may find some old posts on this issue.

Again, head for the Yamaha forum.....