The Grasshopper, our 1965 Slickcraft SS-180, is having itself an existential crisis and needs help!
The motor, a 1965 Johnson Seahorse 90 hp, which became a 100hp after a fire and carburetor replacement, which gained the lower unit of a completely different motor (note it's black in the photo), has finally decided to give up the ghost completely, so we're looking a repowering.
The trouble is, we can't seem to find any information on the maximum transom weight. All the literature says is that the transom can support up to 100hp, but with today's motors being so much heavier I'm not sure what we can put on it. We'd like to keep as close to 100hp as possible. Does anyone here have experience with these repowering these Slickcrafts?
Chris. that old motor was a beast. Looking up some info the motor was around 230# dry. I used to have one of those and they are huge compared to todays size/hp ratings. Right now I have an 85hp Johnson 4 banger that weighs in at 275# and a 140hp that weighs 325# Looks like your transom is high enough to handle a heavier motor without any problems if it is solid.
How much newer do you want to go? You could run a 1970's Johnson or Evinrude triple and probably get better performance and gas mileage. Shop craigslist in your area. I see in one of the pics you were in Fox Lake. (WI) ?? If so search the Milwaukee to Green Bay listings or you could follow the Rawhide.org website ebay listings and pick up a good parts boat for less than $500. with a good motor and controls. Here's what's available now until Monday night. cut and paste the link and remove to two spaces I put in.
https: //www.ebay.com/ itm/16-Steury-T316BB-70HP-Evinrude-Outboard-w-Trailer-T1283294/372956867719?hash=item56d5f62c87:g:hoMAAOSwM0hdpiP5
Just a suggestion.
63 Sabre wrote: I see in one of the pics you were in Fox Lake. (WI) ??
Nice, I thought someone might pick up on that! We're on the Illinois side.
We've had a lot of experience with grabbing parts from older motors and I love the simplicity and authentic look, but my retired parents who use the Grasshopper most of the time are getting tired of reliability issues and want something newer. The concern has been going from a ~230 pound motor to something much heavier (with the same horsepower). The lightest new 100hp outboards we can find are around 325-350, and so we're concerned about the transom weight. Any ideas there? Sound like you think it can take it.