Thread: Duck boat outboard tips

Yep mixed it at 50/1,what’s the cause of this?had it running and warmed up in the tank and when I removed it noticed this..any ideas team?

Have you damaged the seal when checking the waterpump?

check leg oil level and condition for water or loss of oil.

The oil looks very black as if it is actually from exhaust but that is extreme amounts.

Originally Posted by veitnamcam

Have you damaged the seal when checking the waterpump?

check leg oil level and condition for water or loss of oil.

The oil looks very black as if it is actually from exhaust but that is extreme amounts.

Mine does the exact same thing! Gearbox oil it isn't, so it has to be from the exhaust blowing through the leg/gearbox joint. Perhaps it's normal as we usually just use muffs for the Jap makes and no dirt bin?

Originally Posted by outlander

Mine does the exact same thing! Gearbox oil it isn't, so it has to be from the exhaust blowing through the leg/gearbox joint. Perhaps it's normal as we usually just use muffs for the Jap makes and no dirt bin?

Yea its extreme amounts tho.... possibly from running chainsaw oil rather than outboard oil.
A tank or two of the wrong oil either way (saw oil in outboard or outboard in saw) is no major problem but continued use will drastically reduce engine life.

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Originally Posted by veitnamcam

Yea its extreme amounts tho.... possibly from running chainsaw oil rather than outboard oil.
A tank or two of the wrong oil either way (saw oil in outboard or outboard in saw) is no major problem but continued use will drastically reduce engine life.

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Well, that's a relief VC. It's a new (to me) motor so only ran it once and it was with Silkolene Comp 2 synthetic oil for two stroke bikes. I sure that's what caused it.

That might be it ,I used 2 stroke stihl oil,have some proper outboard oil for my 50hp so will give that a whirl,just replaced leg oil with new gear oil so don’t think that’s it.

I cant count the times I have been told about a fire on a boat when its just a OMC ( Outboard Motor Company) starting up. I do know the the OMC were absolutely notorious for over oiling on start up. A system designed as a safety factor for the motor. Yeah rite. Certainly on the V R O ones.

All good she is running sweet now,think the wrong oil was the main issue along with the small water tank I had it in,bring on opening morning!!!

i may even come over one arvo and join you