What would cause oil to blow out the breather on a Harley Davidson Sporster 1200 motor?
I had a sportster 1200 custom and now have a 85 wide glide and i can tell you keep from Twisting the throttle to much and you will notice less oil in the filter. The takes the fun out of Harley’s but it blows oil when your wrapping it out for fun. If a person stays off the throttle you will notice that the filter will not have near as much oil in it.
