Maybe in the very long term because of the compression, but the liquid cooling is a modification to an air cooled engine, unlike cars. There is likely plenty of air cooling to prevent damage from over heating.

Beary

 

Why's everybody so upset. Just let the stuff drain out and run it air cooled. They have been doing it for 110 years or so. Same engine with modified heads is all.

You wait, in 2 years all the touring bikes will have lowers with radiators. Not sure how they will do it on dyna's and softails .. or if they ever will.