ok so i got it all back togather and started it let it idel for 2 minutes let it cool completely and then started it and let it set for 6 minutes next im going to let it set for 10 after that what other break in methods should i use. also i mixed the first tank 18:1 is that rich enough ? only one thing i have a qustion about it has a  rattel sound its not real loud or nouthing but did i do something wrong