no its that center cover. that one that said yamaha right in the center of the clutch cover .. all so the guy told me i no i did not take a compression test yet, i no i no. he told me it had 215 psi its ported an polished. heavy port job 17cc domes vitos power pistons 40 over v force 3 reeds 33 carbs cool head.. am sure there more i for get to right it all down..