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Ended up using Startron anyhow. Just put it in my tanks

Yes i understand its like asking what kind of oil, I was just looking what guys used and were happy with.

I would never dare that inlet. It looks insane

Do you guys put the ring free into every fill up you do?

What do you guys use as fuel stabilizers? Thanks

He stated to add oil directly to my fuel tanks. At least 10 quarts to each side

I looked at the oil tanks about 10-15 mins later... So in regards to temp alarm and motors not bogging down it may be a water pump issue? Thanks for all your info

The motors are peeing pretty well. The small oil tanks had oil in them when i pulled covers off. Im curious to know where these small filters are for the oil.

The odd thing is that it didnt go into safe mode. How much are those oil pumps any how? where is the filter for the oil that i can see if there is any gunk. When i pulled cowling off, the two small oil containers were full though. Im trying to find a good yamaha mechanic to come diagnose but I...

I believe on the gauge it was the far left icon that was blinking. Im not familiar with the gauge icon meanings, my appologies. A yamaha mechanic state and gave me a small round oil pump that he says sits below the live well, he stated you must remove live well and thats where the oil pump is...

The engines did not go into safe mode when I had the alarms, not sure if that answers anyones question on possibilties. One oil pump on one engine is bad, needs replacing but i filled the reservior prior to running the boat. Not sure if it pays to just replace both while im at it. I will look...

The engines did not slow down in speed, just loud alarms. When i shut off and went very slow alarms wouldnt go off. Once i brought the engines up higher they would go off again. I was never aware that there was a water alarm in the boat, very interesting. Im just trying to narrow down all...

I don’t believe my gauges work properly. How do I safely pump out a tank? Is there companies that remove gas for a fee? If I’m not mistaken- aren’t the tanks fiberglass rather than aluminum for this model year. I heard the aluminum tanks are the ones that fail. Also I didn’t know alarms sound...

Do you add anything to your fuel?

Sorry I meant large fuel filters and small ones on engine as well

Hello all: Been pulling my hair out of my head lately trying to get my boat running properly and it just wont happen. 1999 OX66 225HP 1) Went out all summer, boat worked fine. Last week both engines bogged down. Didnt know what it was till we pulled back to dock. Unscrewed fuel cansiters and...

This upcoming week I’m going to try some of your opinions. I had a Yamaha mechanic come down whom. Leaned the vst tank. He claims the boat should run fine but I’m not so certain

That’s very interesting. I will look into that as well. There was some crap in there and we cleared it out .. I’m gonna take a looksiebsunday again with all the advice I see here. Thanks for your input

Harmon is sending me a test cable. They don’t service these units anymore. Too old now

I will look into all these tips you guys gave me and post an update. Thank you all