Ihave a 1997 MERCRUISER 3.0XL MEDEL NUMBER 4-30L100KS
SN OK277014. Very little water comming out of EXHAUST
and TEMP about 185 on mufs. Thanking about replacing
MANIFOLD & RISER. I have owned the BOAT three seasons
in salt water flush engine after each trip. Chances of
ringing BOLTS when...