Ok, guys, quick question before I go to work. I read alot on other biker forums about guys getting 200k 250k outta there bikes (japanese scoots) to read their posts, the bikes are bullet proof AND they really trash Harley's. Seems their opinion is that by 70k a stock Harley engine needs an overhaul. I don't believe that. Question: What is the average life of a stock Harley engine AND does modifying the engine effect the life span ( isuspect it does). Would like some replies so that I can counter some of the negativity on the other website. thanx. by the way, I guess I could have posted this in "off topic" so feel free to move it need be. thank you.