2006 big dog mastiff 117 engine


New Member
Got all fluids changed
used Lucas non syn oil...20\50 there primary oil and 75\140 gear oil.. still can't get the front can to stop rattling ...back ones quiet...here its the valves
only after it gets hot...any ideas...


Active Member
Hello stranger. :) Maybe I'm wrong, but I can not find your intro.
About your question. The reason for the knock is not oil. Any 20 w 50 mineral or synthetic oil is used on these engines. Therefore, you need to carefully adjust the tappets.