Well, I posted a question awhile back but I guess nobody else knows either. How do you set the ignition timing on the YZ450F's? Also what is the range of adjustment or isn't there any? Anybody know or doesn't anybody check this! Please elaborate on this subject and never mind which oil is the cheapest oil to run in the 4-strokes! Any oil is cheaper than parts! The boat ride over across the pond in not cheap!