I have 140 2002 Suzukis. I have an intermittant shift problem with failure to go into forward....never any problem in reverse. Last year took it to shop, put T-9 on bushing and it worked for a while. Now grinds trying to go into forward. On the trailer,shifted,sprayed with Corrosion Block and it seemed to work fine. Shifted into gear fine on the trailer. Put in water(left it on the trailer) and won't shift. So I have an engine that shifts on the trailer but not in the water. Help!! When it does start shifting it does so without any problems for awhile.