So while looking for information about adding brakes to the right side of my newly purchased Kitfox IV, I found Service Letter #23 (Dual Brake Braking Problems) which talks about the possibility of the brakes locking and needing to loosen the bleeder to unlock the brakes. The Service Letter says that once resolution is found that a Service Bulletin would be issued but I didn't see one.

Well I did some more research and the problem apparently applies to MC-1 master cylinders and the matco website has a solution in the form of a Service Bulletin entitled "Service Bulletin for MC-1 Pressure Lock", which can be found at the link below.

http://www.matcomfg.com/Servicebulle...v-2661-23.html

I felt that this might be something that should go under the "Reference" forum, and if a Moderator feels the same maybe they can move it there. It might help someone out that is using the older MC-1 cylinders.

I also sent a note to Kitfox to see if they wanted to post resolution for their service bulletin.

Thanks,

John Brannen