Tusk Oil Drain Bolt: How Fast to Run for the Hills? - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #1 of 16 Old 02-10-2019, 01:32 PM Thread Starter
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Tusk Oil Drain Bolt: How Fast to Run for the Hills?

I discovered recently that the oil drain bolt I've got fitted to my bike is the Tusk one. I heard on an old post that they're not recommended. What's the deal there?

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post #2 of 16 Old 02-10-2019, 03:45 PM
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Hmmm, thats what I put in my KLR. The magnetic one.
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post #3 of 16 Old 02-10-2019, 05:21 PM
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Originally Posted by samuel View Post
I discovered recently that the oil drain bolt I've got fitted to my bike is the Tusk one. I heard on an old post that they're not recommended. What's the deal there?
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Originally Posted by Pbk16gt View Post
Hmmm, thats what I put in my KLR. The magnetic one.
The TUSK brand drain plugs usually come with a STEEL Flat Washer stuck to the magnet, instead of a Soft, Crushable, Thick, aluminum or copper GASKET! If people don't re-use their OEM thick, soft, crushable Gasket on their new Tusk Magnetic drain plug, the Steel washer may allow leakage.

Then owners tend to try to OVER-TIGHTEN the drain plug which may strip the threads out of the engine case. Or they might get lucky and only SPLIT the Tusk drain plug allen socket head and then strip the corners off of their allen key trying to Extract the Split POS.
Which then may require a chisel & hammer to initiate the loosening!

Click on 'Bill10' name or access 'Members List' thru the 'TOOLS' and find his thread.

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post #4 of 16 Old 02-10-2019, 05:35 PM
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Interesting, I will probably just replace it with a different brand, when I change my oil. I used my old washer, and was in the auto service industry, so I was careful, that I didn't over tighten my Tusk plug.
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post #5 of 16 Old 02-10-2019, 05:51 PM
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Originally Posted by Pbk16gt View Post
Interesting, I will probably just replace it with a different brand, when I change my oil. I used my old washer, and was in the auto service industry, so I was careful, that I didn't over tighten my Tusk plug.
Did your TUSK drain plug come with the Steel Flat Washer?

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post #6 of 16 Old 02-10-2019, 06:02 PM
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Samuel and Pbk16gt, I'd dare suggest you have a NON-problem! If your Tusk oil drain plug seals, and you're savvy enough not to over-tighten it, I see no threatening problem. Yet, I do not want to affect negatively the "proper" oil drain plug manufacturers' and vendors' livelihoods; if you wish to pay homage to that manufacturing and distributing segment of the economy, feel free!

Last edited by Damocles; 02-10-2019 at 07:22 PM.
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post #7 of 16 Old 02-10-2019, 06:07 PM
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Originally Posted by Pbk16gt View Post
Interesting, I will probably just replace it with a different brand, when I change my oil. I used my old washer, and was in the auto service industry, so I was careful, that I didn't over tighten my Tusk plug.
Did your TUSK drain plug come with the Steel Flat Washer?
I really don't recall, but I do remember using the old one, probably because it was aluminum.
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post #8 of 16 Old 02-10-2019, 07:24 PM
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Originally Posted by Damocles View Post
Samuel and Pbk16gt, I'd dare suggest you have a NON-problem! If your Tusk oil drain plug seals, and you're savvy enough not to over-tighten it, I see no threatening problem. Yet, I do not want to affect negatively the "proper" oil drain plug manufacturers' and vendors' livelihoods; if you wish to pay homage to that manufacturing and distributing segment of the economy, feel free!
Is re-using a CRUSH washer (as in, an aluminum one) recommended?

Just askin'!

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post #9 of 16 Old 02-10-2019, 07:36 PM
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Is re-using a CRUSH washer (as in, an aluminum one) recommended?

Just askin'!

As I'm sure that you know and do yourself, the key is to Not Crush them to death on the 1st couple of oil changes.

When one feels the crush gasket go 'squish' the first little bit, Stop Tightening! It will only keep squishing with each further attempt to tighten.

If and when the crushed gasket begins to 'roll around' the sides of the hex head, its time for a new one.
Or you can replace them at every oil change. Its your choice!
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post #10 of 16 Old 02-11-2019, 11:59 AM
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I use a torque wrench and have never found a need for more than 15 or 16 ftlbs to both stop leaking and keep the plug from backing out. I use a Eagle Mike magnetic plug and his aluminum washers. At 15 lbs I don't think it does much crushing as I don't see any evidence of it when taking it out when I change oil. I barely see a line on it where the hex head slipped over it during tightening. I bet that same washer will last through many oil changes if I continue to use it that way.
I believe if you are tightening an aluminum washer to the point it starts to roll over the bolt head you're really putting too much torque on it, especially with the case threads being as fragile as they are.
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