Have a knock in my engine after riding for a bit without oil... So I'm heading home after a good ride when I notice theres a knock in the engine. I stop and inspect the bike and find that I have just about 0 oil in my bike... Immediately I scream the appropriate curse words, limp back home and add oil. "Yes , it was Motorcycle oil." Anyways, the knock diminish's but IS STILL THERE!!! I just read a post kinda similar to this where the oil was the culprit. My dad's KLR runs great with the same oil though. I still have the power, but that knock is driving me insane like the "Tale Tale Heart!" Any suggestions other than double checking my oil or sanity?