Re: Tell Tale?
If your 1978 85HP is the same as my 1978 70HP then the tell tale comes from exhaust cover and not the engine block... In my water flow chart from the OEM manual it actually shows the exhaust cover is fed first then the engine block, cylinder head, t-stat and then out the engine...
Anyways on mine the tell tale was blocked w/ debris, weed eater string worked great for me in cleaning out the junk...
Good luck,
Billy