i have a 89 50 hp, on the top of the head there's a water plug for r/w, can i put a nipple on this and make a tattle tail without depriving cooling water from the engine?
I just did mine.
Parts 1- 90deg brass 1/4 inch pipe fitting
1-45deg brass 1/4 inch pipe fitting
1- rubber flexible grease gun hose with 1/4 inch
fittings on both ends
cost was about $10 Canadian
hope this helps