Low oil or sticky lifter, run some sea foam through the engine might help clean out some of the gunk. How many miles? that stuff scares me to be honest but allot of people swear by it.
2006 FXSTBi Night Train FOR SALE $15,850.00 over 30k Invested 4k miles
2001 Modified Triumph Daytona 955i SOLD
2005 SRT10 Ram