I built a new 465 serval and it runs awesome until i start climbing a hill and let off the throttle and get back on it. It will just bog even if I down shift.
If I am on a flat surface and hit it, it's almost to fast if I am in a gear to high and hit it it sounds like it breaks up and smoke alot then clears out and runs awesome I dropped the needles all the way 34mm mikuni flat slides is whats on it for now with shearer inframes.
when I say hill were talking little hills you could drive a stock truck on. If I give full throttle when it bogs it comes back to life.
Some one up where we ride told me to try pods I currently have a single k&n on it and it was clean and I took the outer wear off it did the same thing.
thanks Mike