I have a 1983 Glastron CVX-16 that has had very stiff steering since I got it (5-6 years ago). There is a tension adjustment bolt on the steering box, and I made sure it is as loose as possible. I also added a seal/fitting with a grease zirc to the to place where the shaft leaves the sheath at...
I have a mid 1980's vintage Evinrude 115hp V4 on a Glastron CVX16 that is in really excellent condition. It starts and runs like a dream.
The problem is that every once in a while it stalls at speed, typically when pulling a skier or cruising at above 30mph. It can go a weekend or several...