ATV troubleshooting help?

[JLivi1224]

Guys ,
Looking for a little help possibly. Small engines are not really my forte. I have an arctic cat 550 and it's always run really well. Today at the lease it started to rev up on its own. From a stop if I let off the brake it was throttling enough to give it a good 5 to 7mph. Was thinking it has to be some kind of throttlebody issue of some sort. Does anybody have any experience or further insight that you could share? Thanks!

[Low Fence]

Vacuum leak somewhere

[cvanbrunt]

My Suzuki will do this if I move the choke up into the choke position after it's running. I use it to warm it up in the winter.


Sent from my iPhone using Tapatalk

[JLivi1224]

Was just reading on that. Thanks!