chuck, once a year is fine. Just make sure theres no water in it, and fill it from the bottom hole. Pour in enough to get it to flow from the top hole, close off the top, then quickly plug up the bottom.

as far as running out all of the gas, just pour in some seafoam or stabil. I assume you fish at least once every3 months.

Thanks Josh.
I fish at least once a week when hunting is not going on...and at least once a month during hunting season. Gotta load up on those tasty crappie.
c7

never heard of doing it that way, is it better to do it that way? hmm maybe thats why the lower end in my sears gamefisher 7.5 horse went out on me??? thats means ya gotta turn the motor upside down right?? but wouldnt that possibly mess up the floats in your carberator??

Turn the motor upside down??, Heck noway man, you drain it then
put the top screw back in. Just leave the top loose enough for the
air to come out. Then squeeze the oil in the bottom hole until it
comes out of the top hole ( around the screw ). Then tighten down
the top screw and pull tube out and replace the bottom screw.

You are all set now. Good luck!!

Yup. Thats the way. by filling it up from the bottom, you push all the air up and out, and you can be sure it will fill up evenly.

[blockquote]quote:

Turn the motor upside down??, Heck noway man, you drain it then
put the top screw back in. Just leave the top loose enough for the
air to come out. Then squeeze the oil in the bottom hole until it
comes out of the top hole ( around the screw ). Then tighten down
the top screw and pull tube out and replace the bottom screw.

You are all set now. Good luck!! [/blockquote]


Yup. Thats the way. by filling it up from the bottom, you push all the air up and out, and you can be sure it will fill up evenly. Josh

Not so fast Josh...LOL If you are saying Yup to the above quote it's not all correct. You do not "Turn the motor upside down."

•Step-By-Step Lower Unit Oil Change - An 8-step process to properly maintain the oil in your lower unit.

Chuck I think you missunderstood my quote. "Heck noway man "
I was not stating to turn it upside down at all. We leave them
hooked up to the boat. Thanks

good info there chuck7, I never filled lower units like that. I always drain them right but then I fill it back up like a differential on my truck. lol

that must be why that lower end burned up on my last outboard. I havent had to change the oil on my new one yet since its only been out twice. but when I do change it I'll be sure to do it the right way for now on.

Chuck I think you missunderstood my quote. "Heck noway man "
I was not stating to turn it upside down at all. We leave them
hooked up to the boat. Thanks Phil

Sorry Phil. Misunderstandins can be easy on a forum.Mt apologies.
c7

Just remember, a little bit of water isnt bad. Condensation, and pinhole leaks are possible. But when youd rain the oil and it looks like a vanilla milkshake, you got problems [8D]

I actually change mine every 3 months, but fishing 3+ times a week, plus running 40 miles or so each tournament day will quickly degrade an oil.