Many thanks for all the great info on here! We have a 1989 Funmaker and have enjoyed for the past year, but now the toilet won't stop running and I would love to have an actual Owner's Manual to try and figure out what's going on...
Look in the library section as a 1990 Classic manual is listed. You could also take the make serial # and do an internet search. I have the brochure in my HiLo for my 1990 sealand classic toilet. Post if you need more info.
jbwilliams99
Amazon sells the "sealand" valve for your toilet for <$20.
Will stop the running toilet.
You have to be nimble to remove and install but for the price is an easy fix.