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Been having surging issues w my 2005 200hp OX66 Saltwater Saltwater Series. I pulled the plugs today and this is what I found.
Numbered as starboard 1,3,5 and port 2,4,6 top to bottom.
All look very similar, EXCEPT #6.
first 5 appear most dry with electrode ceramic white and black around first 2 threads. #6 is wet with black electrode and ceramic and no black build up around threads.
These are brand new plugs 3 weeks ago just after cleaned injectors were reinstalled. Only about 2 hours runtime.
NGK BR8HS, per manual.
I did notice a couple of the tips not screwed down tight. Does that matter?
Whatcha think?
i know I’ve read that some OX66 drop a couple cylinders when they are at certain RPMs. But not sure this 200 hp does that? If so, would that explain one plug looking very different?
Numbered as starboard 1,3,5 and port 2,4,6 top to bottom.
All look very similar, EXCEPT #6.
first 5 appear most dry with electrode ceramic white and black around first 2 threads. #6 is wet with black electrode and ceramic and no black build up around threads.
These are brand new plugs 3 weeks ago just after cleaned injectors were reinstalled. Only about 2 hours runtime.
NGK BR8HS, per manual.
I did notice a couple of the tips not screwed down tight. Does that matter?
Whatcha think?
i know I’ve read that some OX66 drop a couple cylinders when they are at certain RPMs. But not sure this 200 hp does that? If so, would that explain one plug looking very different?