Water out of Thermostat outlet on 1987 Johnson 150 V6.

[Airborne29]

I have a 1987 Johnson 150 V6 I recently purchased on a bass boat. It idles like a fine but seems to die out when any more than 1/4 throttle is applied to the motor. It seems to reverses fine. I have noticed there is water coming out the thermostat holes. It pees fine out the tell tell outlet. Runs fine for as long as you leave it in idle. Any help would be appreciated. Ron

 

[emdsapmgr]

Re: Water out of Thermostat outlet on 1987 Johnson 150 V6.

Likely the rubber bladder in the thermostat housing has fractured. Not a big deal to replace-the parts are inexpensive. If the engine won't take fuel, possible the carbs may need overhauling. If you plan to work on this yourself, you might as well get an original factory service manual: outboardbooks.com.

 

[Airborne29]

Re: Water out of Thermostat outlet on 1987 Johnson 150 V6.

Thanks emdsapmgr for the response. I will replace the thermostats seals and give an update once I find the parts. What i was thinking I was going to need to rebuild the carb's on it. Never done it but I watched a couple videos on you tube and will buy a reapair manual today. I just replaced the spark plugs and the cold start issue I had went away for the most part. Might go ahead and replace the plug wires also. Thanks again for the help. Ron