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So I have replaced the 02 sensors on my bank 1 side two times. I have 42 hours on the boat. Changed the oil, did all the maint at a naughtique dealership. I come to find out that after talking with a mastertec and looking at the two 02 sensors one is a red tint, I pulled the plugs on that bank and there is a red tint as well. The coolent is red would you think that this is a blown headgasket on the bank 1 side. The motor is a xr550. I live above 5200 feet so.
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I started getting the same message on my 2013 G23 550 this year when I first drove it after winter storage (150 hours last year). Was told by dealer not to worry, probably bad O2 sensor. And to drive without worry until we have time to bring it in.
Hope that is right. -
This is what I always google when plugs are a question. Spark plug color chartComment
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If you start running hot, or major loss of preformance then worry. Otherwise I wouldn't worry if your under warranty, and already doing what your supposed to be doing, what will be will be there is nothing that you can do till it plays out. Time will tell, use it!Comment
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You know it could be oil fouled from the fogger oil from winterization,Comment
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