I’m having a problem with my bike and not sure what to do. When I start for a stop the clutch cable lose all its tension. (only when I start at high rpms like for a drag race around 7-9 rmps) I mean the clutch lever is just flapping back and forth. Then after I ride for no more then 30 sec it comes back. I have a new clutch and new clutch cable. This was happing before I put the new clutch in to. Some times it happens when I wheelie but not all the time.