Today I went to the local independent shop to purchase a thermostat for my 1976 70 HP Evinrude. The guy told me that most people just take them out on the older ones and basically "be done with it." Would there be a problem in doing this? Personally, I'd like the motor to run at the temperature that the designers intended, but what do the experts think here? Will the motor run cooler or less efficient without the thermostat? I'll look for some feedback before I order the part. Thanks!