Yeah, it's called your fast idle. All that does is open the throttle plate some. Adjust it so there is next to no slack in the line and you can use it as a cruise control. Mine will hold the bike at 80-85 when set wide open in top gear.....It's not a choke....

I use it to rest my hand and when cruising on the freeway for long extended periods.....You don't need to buy anything, YOU HAVE ONE!