Home › Forum › Ask A Member › Chasing a lean sneeze; 67 80HP V4 › Re: Chasing a lean sneeze; 67 80HP V4
There are a lot of things you really cannot properly check out in a barrel.
The obvious thought is that if it behaves when warm, but seems lean while warming up, increase the choking a bit by rotating the cover/thermostat a bit "tighter." This motor also uses an electric choke solenoid with the plunger working through springs, but I am not sure whether this acts to close or open the flaps. (On a car this would be an "unloader" or "pull off" and act to open the flaps against the thermostat spring pressure, but I don’t assume anything about OMC chokes….) Have you checked the calibration of that? Maybe somebody here can explain how to do that. If this is opening the choke flaps too far that could be the issue. I see that marineengine.com has cover/thermostat (379511) for $9.00. Maybe time to get out on the water?