I looked back thru my old posts (2016/2017 vintage) & can find no mention of the boat, so here is a quick history.
A guy called the marina I was working at in the summer of 2016. He wanted to get rid of a '68 Evinrude boat his dad had for 30 or so years. Dad's been dead about 8 years & the boat is just taking up garage space. Long story, boat is a 1967 Sportsman 120. Needed a good heavy duty buff job but should clean up nice. Interior was good, engine complete & trailer solid with a total of 6 wheels & 7 tires. I mention the wheels & tires because these things used a 9" split wheel, tube type 10 ply tire. The bolt pattern is 5" with a huge center hole, so it is an oddball setup.
Fast forward & I get this boat for free, hauling it home & back it into my shed. Water starts dripping from the fwd keel area. Yep, it is cracked. Looks like from long term sitting on its keel on a hoist. These boats are a foam core system, unusual for their time. So I assume waterlogged foam through out. I cut about a 2" by 18" piece out & make a repair externally. Then I remove every piece of hardware & buff like crazy. Engine needed carbs (yes 2 one barrels) rebuilt & a new fuel pump.
Boat runs pretty good but appears heavy. Over propped with RPM about 600 low. I run the boat all season (2017), not at all in 2018 and a quick afternoon on Labor Day this year. I decide it's time to perform surgery to remove the excess weight.
Out comes the rear bulkhead & engine cover, lower unit & engine. Next I remove the interior & windshield then cut the floor out. 465 lbs of wet foam plus water logged 1/2 plywood flooring. Stringers are 2" of plywood, wet but appear solid. Boat is gutted & put away until spring when the reassembly takes place.