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I think there were 4 smaller (ish) problems that that when combined, appeared as 1 large problem. 1) Rich running injectors (has never been cleaned/tested) 2) Bad O2 sensor (fuel mileage dramatically improved after replacing) 3) bad ignition coil (maybe slowly intermittently failing over...

Sounds good. Ya maybe just cut out my solder joints and use good new wire and connectors. How’s this for a victory pic?

Thank you JESUS! We just took er out and honestly, running better than has in years! ....no surging, cruising #s better than ever, and 5400 rpm at WOT. In the near future I do wanna replace that bundle of wires with an complete intact set. (Think a used salvage set is fine? Or know where I can...

Oops looks like it might be for the oil tank overflow. Thank you! fingers crossed and hands folded...gonna take ‘er out on trial again today. ...my family is breathing down my neck...we need our “escape pod” operational. Haha

hmm I’ve looked pretty good and can’t seem to find a line that would reach there... I’ll do some more searching. What ob do you have Dennis? Thank you Spark, I will definitely call Jack to look for that bundle of wire harness.

Well I guess for now, I’ll run with the soldered wires until I remedy my problem. Then try to find a used harness system somewhere. Should be fine for a bit...? Another quick question. I’ve noticed on the port side of the plastic intake silencer, there are 2 vacuum line nipples. I only have...

Looking at the CDI, I don’t recall seeing those 2 bumps on the right protruding out. is that normal?

Well damn. I just soldered up and heat shrinked all the bad wires. Thought this would be better than butt splices.... I first ran in a bucket for a couple minutes then went down to the harbor. The cowl was off for a bit while installing new coil. And then again after the first run around...

Ok, I pulled that bundle of wires. I'm gonna solder a bridge between the couple bad spots. Upon closer inspection, it looks like the flame was right on top of the bottom (of 2) low-pressure fuel pumps. I can see burn marks on top of one of the stainless screws. maybe it was arcing to this...

good thought Sparkdog. Thanks for your valuable insight! One question though. If the intake gasket were blown out, wouldn't I have bad compression on that cylinder? last I checked (at the beginning of this whole debacle) compression was good (between 115 and 120) in all cylinders. Maybe...

I promised Id report back. Unfortunately, I reporting back even more frustrated than ever. After diagnosing a bad coil last week, I ordered a new coil. paid the $57 to AK (OUCH) and installed the coil this morning. The outboard seemed to run fine at idle. sounded a little smoother than...

Thank you I ordered a new coil assembly, when it gets here and I get it installed, I report back. As much as I hate paying shipping and waiting for parts, I have to admit it’s gonna be nice to step away from outboard work for the weekend. Hope you all have a good one!

I cleaned the coil conntions up very good before the swap. Feel pretty confident it’s not the connections. But it is curious the faulty coil also seemed to be the one w the most salt crust. Idk full disclosure, a couple years ago the line that connects to the port that the water pressure...

Eureka! Swapped coils 4 & 6. Then pulled wires on each. Pulling 6 resulted in very noticeable change. Pulling 4 resulted in little to no change. Then switched coils back to original, and noticeable engine change back to 4 not 6. Please correct me if I’m wrong, but this MUST mean bad #6...

So quickly b4 I pulled plugs to clean I ran in bucket for a couple minutes. Pulled #6 wire off plug. No change! At 1000 rpms, 1600, or 2700 rpms. But then I pulled the wire off #5 (at idle) didn’t notice much, if any, change there either. But I did on #4.... i got curious and pulled off the...

Ok great ideas, Thank you team! I DID smell the plugs. No strong gasoline smell. But the wetness was thin like gas. Plugs are BR8HS-10. So I SHOULD NOT pull the boot while engine is running? Any way to check without a I will clean the plugs and try the injectors switch. But can I ask...

I keep reading that some OX66 drop a cylinder or 2 at low rpms. Does anyone know if this 2005 200 hp saltwater series 2 does that? Would that explain 1 plug looking so different? Could be rich but since injectors were just recalibrated to spec...could it be that it’s not getting good hot...

Interesting! So here are the plug pics. 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...

Good to know! I will pull all the plugs and take a pic today. I did pull #1 after yesterday evening test. It was pretty damn black and wet. As PM anyway I was going to replace the Racor (usually do this every spring anyway). To minimize trips to the hardware store, I was gonna pickup a...

Thank you! Dennis The portable tank I was using has one of this new caps w the vent integrated into it. So ya it was “open”. I just had the injectors clean last month, as I thought they were causing this issue. Brucato FIS cleaned them. He said the filter baskets were spotless. However they...