1995 evinrude 90 hp pees at idle but doesn't when running higher rpms

[chris0061]

We seem to be having a problem with the engine loosing pree streem at highter rpm. Its pushing a 24 foot pontoon. When we noticed it there was no alarms, I shut it down then fired it back up and it was shooting a good streem. We did this several times with the same reults. Any ideas??

 

[RBoyd1971]

It could be the hub inside the impella slipping when rpms increase. When the friction is overcome, it slips.

 

[jakedaawg]

Install new impeller. May need the housing as well. Inspect that.

 

[oldboat1]

^Agree. Monitor the head temp to make sure it's not overheating.

 

[chris0061]

I installed a new water pump kit and Im finding out that the thermostats are working but the motor will get hot with them in and run cool with them out

 

[racerone]

There are 2 different 90 HP models in 1995.----Which one is it ?

 

[chris0061]

E90ELEOC

 

[chris0061]

Update, I took the thermostats out again, blew them out, blew the chamber they sit in out and now getting great temps all around..