97_Manta_Ray_CR
Seaman
- Joined
- Jan 19, 2015
- Messages
- 67
First off thank you for taking a look at my question/concern...
Over this last off season I replaced my thermostat, have had no issues to speak of, after taking the boat out a few times I noticed that the boat has a hard time trying to stay at idle (It runs rough) while in the water. At 4000 RPM boat run fine with no issues, I took a buddy out yesterday and explained some of my issues to him, He is a auto mechanic and he looked at my engine and felt the cooling hoses and said: (Yep there's your problem) he felt the two cooling hoses and the elbow hose (the one from the engine) was pretty hot and had soft, while the outlet hose from the thermostat housing was cool and hard. He said these two hoses should be the same temp and same pressure. So in turn whats he saying is that the electronic choke is calling for more fuel at idle and choking the engine out, because of the engine thinking the temp is off
The gauge on my dash never gets above 140 F
So my question is: is he correct and should I try to replace my thermostat again
Over this last off season I replaced my thermostat, have had no issues to speak of, after taking the boat out a few times I noticed that the boat has a hard time trying to stay at idle (It runs rough) while in the water. At 4000 RPM boat run fine with no issues, I took a buddy out yesterday and explained some of my issues to him, He is a auto mechanic and he looked at my engine and felt the cooling hoses and said: (Yep there's your problem) he felt the two cooling hoses and the elbow hose (the one from the engine) was pretty hot and had soft, while the outlet hose from the thermostat housing was cool and hard. He said these two hoses should be the same temp and same pressure. So in turn whats he saying is that the electronic choke is calling for more fuel at idle and choking the engine out, because of the engine thinking the temp is off
The gauge on my dash never gets above 140 F
So my question is: is he correct and should I try to replace my thermostat again