Sha35297

It is very similar to the Polaris. When I attempt to replicate the noise by manually rotating the clutch with the crank cover off. I cannot hear the noise or see anything hitting. Here is a pic of what it looks like.

Customer brought in this bike for no response when put in gear. After getting into the transmission I found the main shaft for the clutch had been stripped where the gears mesh up and also the shaft for the gears had been broken in half. I replaced all broken parts and reassembled the transmission. Now it makes a knocking noise in low gear and in reverse. When in neutral it tries to roll reverse while making the same knocking noise. I’ve disassembled and reassembled it several times with the same result. Any ideas??