Hello everyone I have a 90hp out board Johnson an it runs great for about 3 min maby less and then it just starts cutting out. The guardian kicks in I have to turn off the boat an then it will work again for a small amount of time. Cant figure it out can any one help!!!!! I have replaced the impeller an the thermostats it was getting hot an I would get an alarm form that. This is when it all started after that it has gone down hill. An when I put in gear some times it dies i have to punch it an then ease back quickly because I'm in a no wake zone and then normally its ok. I am thinking it might be the coil or the temp switch but I don't always get a hot alarm, how would some one go about testing the coil. I know today when I took it out it wouldn't start once I was on the lake an got that alarm an truned it off. went to turn it back on an I had to disco the battery an then it worked ok for a bit then started to do the same thing. An some times seems to idle a bit rough so I'm leaning towards the coil but don't know to test to see witch one is bad. Any advise would be greatly appreciated. Thanks