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Jan 23rd, 2013
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Lower Unit Plug #13234259 08/03/19 03:56 PM
Joined: Jan 2011
Posts: 371
Loomis ex Offline OP
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I have a stubborn plug on the upper part of my lower unit. It is on a Yahama sho 250. I need to remove it to drain and add the lower unit oil.
Besides a big screwdriver, is there a tool adaptor or socket that can remove it without stripping the face?
Also, I've heard you can replace it with a plug that has a hex fitting instead of a screwdriver.
Thanks.

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Re: Lower Unit Plug [Re: Loomis ex] #13234300 08/03/19 04:54 PM
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Tin Star Cajun Online Content
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Need to use an impact screwdriver! That's what I had to use. Worked great.


The only difference between a little girls scream and a warrior's battle cry is the direction your'e running!

Re: Lower Unit Plug [Re: Loomis ex] #13234626 08/03/19 11:44 PM
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squib Offline
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Re: Lower Unit Plug [Re: Loomis ex] #13234714 08/04/19 01:18 AM
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ForkedJames Offline
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Impact screwdriver is what I had to use also


James Grimsley
Re: Lower Unit Plug [Re: Loomis ex] #13234747 08/04/19 01:41 AM
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MATT REGAN Offline
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snap on makes a heavy duty screw driver with a fat tip to fit the bigger slot in the plug. its made for that and works great

Re: Lower Unit Plug [Re: Loomis ex] #13234942 08/04/19 10:57 AM
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361V Online Content
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Impact screw driver. My entire life I have never understood why a Phillips Head screw was and still is used by manufacturers for these lower unit plugs.

Last edited by 361V; 08/04/19 10:58 AM.
Re: Lower Unit Plug [Re: Loomis ex] #13235283 08/04/19 04:53 PM
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NickHasty Online Content
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Shouldn’t have to be screwed in that tight...seems like that would defeat the purpose of the o ring / gasket ...

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