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How do I get this off???

01 Dec 2019 06:58
Fewmarshall
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How do I get this off??? #1
Hey, sorry if this is a really stupid question but what is this nut around the exhaust called and how do I safely remove it? I've searched on google for ages and can't find what sort of tool this would need, I'm willing to order the proper tool
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01 Dec 2019 07:22
Mauser
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How do I get this off??? #2
Looks like a castle nut, would have thought a "C" Spanner of some type would have been available,

RT2 ~ XR650R ~ DT175MX ~ ZX12R ~ XJR1300 ~ DT125LC ~ XR250R ~ XL125R ~ RD350LC ~ MT50 ~ GPZ1100

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01 Dec 2019 07:31 01 Dec 2019 07:32 by Gr8uncleal. Reason: more text
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How do I get this off??? #3
+1 to Mauser's reply.

What bike is it off?

Oh, and there's no such thing as a stupid question!

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01 Dec 2019 08:00
Mauser
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How do I get this off??? #4
Something like this maybe ?
yambits.co.uk/fs1e-double-ended-spanner-p-10859.html

I would give it a good soak in a releasing agent first.

RT2 ~ XR650R ~ DT175MX ~ ZX12R ~ XJR1300 ~ DT125LC ~ XR250R ~ XL125R ~ RD350LC ~ MT50 ~ GPZ1100

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01 Dec 2019 08:09
MarkT
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How do I get this off??? #5
Tool is called an "Exhaust ring nut wrench" or generically a "hook spanner".

I have a universal one that works... (Check on Amazon... make sure you get one the right size for the diameter) I've never seen a Yamaha one except in a catalog (see pics). You might search ebay for an original.

Way back when we always used to use a hammer and punch to loosen and tighten.... but if really stuck you could break the threaded flange off the cylinder if hit too hard. :Ugh

That is rusted up pretty good.... might need a lot of penetrating oil and heat no matter what method you use.





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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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01 Dec 2019 08:21 01 Dec 2019 08:21 by MarkT.
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How do I get this off??? #6
Mauser posted a great possibility while I was typing and getting pics... :likey

FS1E is similar to small Yamaha enduro engines....


Amazon has this set... or you can find them individually.

www.amazon.com/ABN-Adjustable-Hook-Wrenc.../140-7228947-5659306

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

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01 Dec 2019 09:14 01 Dec 2019 09:17 by Schu.
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How do I get this off??? #7
I've always used an appropriately sized piece of bar stock and a Big.....Hammer. (BFH) After soaking it good with penetrating oil you place the bar stock against one of the notches and give it a whack with the hammer. Make sure your spinning it off, not on. By the looks of that nut, I may have already worked on that bike. Lol

Schu

"Someday, you'll own a Yamaha"
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01 Dec 2019 09:23
KennyV
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How do I get this off??? #8
As Schu said, I would keep it wet with a good penatraiting oil for a few days first and while keeping it wet, use a small hammer (SFH) and lightly tap around the OD to help break up and break loose the rust. It looks like there's a lot of rust. You'll need the BFH for enough impact to get it moving. :)

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01 Dec 2019 09:34
MarkT
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How do I get this off??? #9
Use caution with a BFH... cylinder is cast iron and you can break the exhaust fitting off easier than you think it might happen. Don't ask how I know. :Ugh

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

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01 Dec 2019 09:45
1971DT250
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How do I get this off??? #10
Suggest some heat with a heat gun or propane torch several times over a period of days with lots of penetrating oil before you apply any force.

The hours spent riding my Enduros is not deducted from my life span.
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