Hello all. Here's my story.... Just bought a 93 Nitro with a 90force on it. Was told the motor had low compression. (Diagnosed by Bass Pro Shop) Got the boat home and started looking the motor over and it appears really clean and like it had low usage. Upon further tinkering realized that it just has a bad starter! Bad call by the bass pros. Anyway, now that I have it running I hooked it to the muffs and turned water on about half way and fired the motor up. It ran for about 5 minutes and the overheat alarm started sounding. I didn't notice any water flow exiting the motor anywhere. I believe it is supposed to exit the 2 holes below the rear of the motor cover. Can someone please enlighten me on the inners of the cooling system? I can't wait to get this thing on the lake but don't want to blow it up either. Already planned on a new impeller as I'm sure its due for that anyway..... Thanks for the help on this awesome web site!!! Sean