I was wondering if Ac makes a petrolum oil that I can use for break in period then switch back to synthetic oil? Is this a good idea to break the bike in hard then change the oil after 20 miles? Thanks!!

 

Changing the Break-in oil @ 20 miles is within reason. Better for the engine to get as much of the metal shavings from break in and manufacturing as soon as possible. I wouldnt change over to synthetic until you have around 500 miles on the bike...maybe even more. You want to be sure that the engine is fully broke in and the rings are properly seated first before changing synthetic. Here is an interesting site check and see what his recommendations are, dont know if he's right or not but something to think about. Have a good one! http://www.mototuneusa.com/break_in_secrets.htm