Has anyone done a motor swap in these boats????? Im thinking about doing a GSXR1100 motor swap in my 1995 seadoo sportster....Do you think the pump would hold the power?? Should i use a bigger pump? I would like to use the 6 speed tranny aswell..What would be the best way to cool the motor?? Please leave me some feedback on these subject...Thanx
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Seadoo Sportster Motor Swap
- Thread starter tuckin18s
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swap
Yeah if you could use the 6 speed tranny with the swap the boat would be insane....But my big question is how would you cool the motor...Could you run water throw the motor? With some kind of pump? Plus how would you change gears?? The clutch would be easy...Id like to do this swap bad....
Yeah if you could use the 6 speed tranny with the swap the boat would be insane....But my big question is how would you cool the motor...Could you run water throw the motor? With some kind of pump? Plus how would you change gears?? The clutch would be easy...Id like to do this swap bad....
Not feasible....
Putting a motor cycle engine in a boat or ski is not feasible.
You'll have many, many problems. The biggest problems are, the motor cycle engine is not designed to be in a marine application. No water resistant protection. All the component parts of a marine engine are water resistance.
You might notice a starter for the Rotax looks almost exactly for the one on the 1100 Yamaha, but about $200 bucks cheaper. If you decided to go with it, it would only last a couple months.
THe carbs on the marine applications are floatless. That's because of the bouncing of the boat/ski and the chance of leaking. You do not want any vapor building in your hull, this will create an explosion hazard, especially with the motor cycle engine, since it's got open electrical systems.
Cooling? Most motorcycles of this day are water cooled. They contain their own radiator and water pump. You could change the radiator with a smaller one, like an oil cooler, then create a small plexiglass water box and use the pumps water pressure to create a positive flow on it. That should keep the water below 189*F.
Pump and transmission. I would eleminate the transmission and make it a direct drive. There isn't really a need for a transmission since the torque your creating is forgiving. In other words, the impeller will slip where as the back tire of your bike will not.
You'd also have to establish how to rework your electricals.
In the long run, I think you'd be dumping a boat load of money in it, with the idea of it sounding like it'd be a powerhorse, to find out that it really was not worth the money spent.
I saw a boat a couple years ago the the owner modded and put a small 4 cylinder Nissan motor in. I lauged so hard I cried. It worked, the motor did run. But a 657cc motor in that same boat could have run circles around it.:cheers:
Putting a motor cycle engine in a boat or ski is not feasible.
You'll have many, many problems. The biggest problems are, the motor cycle engine is not designed to be in a marine application. No water resistant protection. All the component parts of a marine engine are water resistance.
You might notice a starter for the Rotax looks almost exactly for the one on the 1100 Yamaha, but about $200 bucks cheaper. If you decided to go with it, it would only last a couple months.
THe carbs on the marine applications are floatless. That's because of the bouncing of the boat/ski and the chance of leaking. You do not want any vapor building in your hull, this will create an explosion hazard, especially with the motor cycle engine, since it's got open electrical systems.
Cooling? Most motorcycles of this day are water cooled. They contain their own radiator and water pump. You could change the radiator with a smaller one, like an oil cooler, then create a small plexiglass water box and use the pumps water pressure to create a positive flow on it. That should keep the water below 189*F.
Pump and transmission. I would eleminate the transmission and make it a direct drive. There isn't really a need for a transmission since the torque your creating is forgiving. In other words, the impeller will slip where as the back tire of your bike will not.
You'd also have to establish how to rework your electricals.
In the long run, I think you'd be dumping a boat load of money in it, with the idea of it sounding like it'd be a powerhorse, to find out that it really was not worth the money spent.
I saw a boat a couple years ago the the owner modded and put a small 4 cylinder Nissan motor in. I lauged so hard I cried. It worked, the motor did run. But a 657cc motor in that same boat could have run circles around it.:cheers:
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