In the April edition of Motorcycle Consumer News there is a letter by Andy Vogt about a man who replaces master cylinder sight glasses with real glass for $35 including return postage. I emailed Andy to ask if the address is correct. It was hyphenated in the magazine to justify the margin and is NOT correct as printed. Andy says he is very satisfied with the job. Here is the correct email: trailertrawler@gmail.com    His name is Bob Clinkenbeard. I know there was a discussion on here awhile back about sightglasses. Boofer

From what I read the guy I referred to does the work also, for those who may not be handy or have the time. $12.50 or $35 both cheap compared to the price of a new M Cylinder.