kevin_stinton
New member
"I have an old 25R71S outboard
"I have an old 25R71S outboard which starts well and has plenty of power when run from cold, but starts to loose power after 5 to 10 minutes at WOT.
It gets slower and lumpier until finally slowing down to a complete stop.
I have installed new Carb, fuel pump and water pump kits on it, plus cleaned out all of the cooling system thoroughly.
There is plenty of water coming out of the exhaust port on the back of the gear case, but no ‘Telltale’ at idle.
I don’t know if this model is supposed to be able to do this?
I am suspecting an electrical fault, say maybe the coil is failing when it gets warm.
Has anyone seen something like this before on a similar model?"
"I have an old 25R71S outboard which starts well and has plenty of power when run from cold, but starts to loose power after 5 to 10 minutes at WOT.
It gets slower and lumpier until finally slowing down to a complete stop.
I have installed new Carb, fuel pump and water pump kits on it, plus cleaned out all of the cooling system thoroughly.
There is plenty of water coming out of the exhaust port on the back of the gear case, but no ‘Telltale’ at idle.
I don’t know if this model is supposed to be able to do this?
I am suspecting an electrical fault, say maybe the coil is failing when it gets warm.
Has anyone seen something like this before on a similar model?"