Hi I was checking the chain case level , once I removed the drain plug I was shocked to see loads of brown water flow out for 30 seconds, I drained all the remaining sludge out of the case , and filled it back up with ATF I hope this might help clean up the mess I have myself in , the machine runs great I just bought it Does any one have a better way of cleaning this up. Thanks Mike. 1999 453 Ps what is the proper fluid for the chain case