i have a similar concern i have a 1985 grady white offshore 24 and im am looking to repower with two new mercury 115 four stroke. the boat is 3500 lbs. is this an ok move?
at full speed my two mercury offshore 150 only runs for about 15 minutes then break down to about 8 knots and sometimes shuts down.
what could be the cause? i am a firstimer here i hope i am understood?
