UFO??

[1976RD400C]

I mentioned how the UFOs really crisped up the 0-1/2 throttle and the response. 0-1/4 is something else. With the 34mm carbs you get a lot going on with just a little throttle. It makes it so easy and smooth to ride. The first accel I turn to 1/2 throttle and roll it right back to 1/4. The next one is about 1/4 throttle. I really like how it is running.   

https://youtu.be/sDHceoRcW9Q

[m in sc]

sounds really good