My 1976 115hp straight 6 melted a piston on the weekend so I went to the local dealer and he had a brand new powerhead there still in the box. Its definitely a straight 6 but when we put the part # in the computer it would come up blank. The part # is 56125a72 and my question is what size...
I got a 15.6ft thunder craft fiberglass speed boat with a 115 merc and want to put a kicker bracket and motor on back for trolling on lakes. I really like the 2.5hp yamaha but im worried it would be to small to push the boat. Any one know how big a boat the 2.5 will push? should I get a 4 or 6...
