I have an OLD Sears 12' aluminum jon boat that has a tag rating it for 7 1/2 hp , and I have a much newer 9.9 Johnson ( '78 ) that I use for a kicker on my larger boat.<br />What kind of modifications would I need to do to hang that 9.9 on the thing ( I'm not planning on racing the thing, this is just for solo fishing)?<br />Or considering the age of the boat, would the weight/stress of a 7 1/2 at the time be comparable to a more recent 9.9 ?<br /><br />Thanks-------Robert
