Mine was making the same noise last season.... I thought it was a bent shift fork, but after disassembly I found no obvious problems... I rebuilt the motor as a ported 4mil, had Tyson cut my trans, all new shift forks (for the hell of it), the noise is gone this season.... But, i'm getting alot of recipricating noise in the engine now, i disassembled the engine checked all the crank and rod bearings, piston clearance, everthing is good... I run it hard and it has not broke... The noise worried me until I heard other Banshee's make the same noise... Is this common?