Checkers, External crank case breather system? Not familiar with that. I have two rubber hoses that are connected from my High flow backplate under the air filter to the top corner of each cylinder head. Is that what you mean?
randy
You want to take those hoses that are putting dirty hot mist into the combustion chamber and carbon up the top of pistons, plugs valves, etc. You want to get that mist outside of the motor. If you do a search on this forum "external breather" it will bring up several methods. If you google DK Customs there is a link on there web site that has pics and tech write up on why.
OK.... whitish...if stock but can go to tan if you have a fuel management system that is richer... as they do burn leaner and hotter. But no blistering or fouling.