This seems to be a recurring problem among stunt bikes for some reason.

Other than the fact that stunt bikes are asked to perform outside of their designed power range, I can't quite figure out why this is such a common problem. Anyone have any ideas?

Here is a short list of things we've come across that can contribute to bogging issues.

-Plugged up reed valves (PCV System)
-Spark plug gaps out of range
-Aftermarket CCT not adjusted
-Vacuum leaks
-Throttle body synchronization
-Lean/Rich running conditions (Sensors out of spec)


Most of these are just basic maintenance that have been overlooked.

I guess I'm looking for other factors that people have come across to find solutions to this seemingly fairly common problem. Stock bikes must run perfectly in order to perform as a stunt bike. Is the end solution to build a dedicated stunt motor? Or is it better just to keep fixing these problems as they arise?

Any input is greatly appreciated.