Hello my timing was off on my 01 warrior 350. I lined the flywheel up with the t but I noticed that when I rotate it, the cam sprocket will be different on the rotations. One rotation will be lined up with the T on the flywheel and the cam sprocket will be lined up perfectly. But when I rotate it where it lines up again with the T the sprocket will be 180 degrees off. It backfires really loud and won’t start. Is it on exhaust stroke instead of compression stroke? And could I have bent a valve by trying to start it?