Honda 10 flush kit
I have made a kit to flush the engine. Its total cost is about 10$. Go to Catalina 25 national association home page. Look in the tech sectiion under C-25. Go to the bottom of the list. My boats name is Wind Lass and there are pictures of how I made the kit. Fresh water flush by just removing the engine cover. dgyoung2001@earthlink.net