B Bryan Riegner New Member Jun 22, 2009 #1 My sportster had plugs replaced, engine runs quieter than ever and smooth but thrust isn't what it used to be and speed maxs out at 25-30 mph. It used to top 40 mph- any ideas
My sportster had plugs replaced, engine runs quieter than ever and smooth but thrust isn't what it used to be and speed maxs out at 25-30 mph. It used to top 40 mph- any ideas