Bought a bike for $500. Top end rebuild with new pistons. Runs fine but lacks a little power. I was too lazy to replace the old spark plugs. Tested them the other day and come to find out the left side spark plug had a break in it and was not functioning to its fullest. Dropped the $7 for a new set of plugs and she screams down the road like she was new....These bikes are amazing pieces of engineering if we all don't get in their way!
