My new outboard is mounted ABOVE the transom?

[MrFish]

I posted this in the marine section but it is really a general question so I'll move it here.

Help!!! I went in to pick up my Koffler Bay-Bee yesterday that had my new T-60 Yamaha installed on the old boat. Apparently the new outboard is either two inches longer than my old long-shaft Yamaha, or the rigger felt it was more optimum to have the prop higher in the water column. When they rigged the new motor they bolted it onto the transom, about 2 inches above the top of the transom! No weight is actually hanging on the motor brackets, just four beefy stainless steel bolts.

Wonder if I should have them take the motor off go back down to Eugene and have Joe Koffler weld up the entire stepped-down section of the transom to bring it up 2 inches so that it actually supports the motor weight?

Anyone had experience with a motor mounted like this? Really appreciate any thoughts here.

MrFish

[Drachir]

It will not be a problem. Jet drive motors are usually like that, and have never heard of a motor falling off. The transom is plenty strong enough to handle the weight. :smile:

[MrFish]

I've always run props so I guess I never looked closely at outboards with pumps to see them raised up like that. Looks weird, though.

MrFish

[Tilla]

Mine is that way (different mfger), I know of others. Consider it "dialed in". Better that some places who just slap it on. Mine is done to bring the front of the jet perfect with the bottom. Do you have a kicker? The height of the transom might be built for that.

[ET]

Mr. Fish,

Congratulations on your new Yamaha!! Your old Yamaha is running great, thank you! Funny thing is that when I read up on mounting it on my Arima, I learned that the optimum height of an outboard is when the cavitation plate is about 1" above the bottom of the boat. So, I ended up raising my new Yamaha exactly as you are describing. The idea is that when you are on plane, the cavitation plate is actually out of the water and the drag on the engine is reduced.

Glad to hear your new motor is in. Unfortunately, I haven't caught a salmon since I installed my new motor.... I'm sure my luck will change shortly!

[Ironhead]

My old V.S.had a 25" transom in case I wanted to install an extra long shaft . When I mounted a jet drive to the boat the distance between the top of the transom and the bottom of the outboard bracket was about 2-1/2". When it came time to replace the Evinrude with a Yamaha. The Yamaha has a 3/4" plate between the lower housing & the pump .This made the dimension between the motor & boat about 3-1/4". My new boat has 27-1/2" transom but the motor still sits up about 3/4" above the boat. The motor needs to go where its in the corect location regardless of transom height. There is nothing wrong with the motor not resting on the transom. The bolts and the outboard bracket will take care of all the support it needs.

[MrFish]

Thanks all for the comments. I will take it as a given that it is now in the right place. The rigger did say he was adjusting the height to get the best rpm setting with a couple different props. And as one person suggested here, the cavitation plate is just a bit above the bottom of the boat!

Cutthroat, nice to hear my old Yamaha is working, and looks like you'll be bringing it up a an inch or so like I did. Not so good to see the chinook haven't been jumping in the Arima yet. But the ones you get later in July and August will be even bigger.

I sure appreciate the thoughtful advise and good ideas provided by the IFISH community. We is good people.

MrFish