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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Please help - unidentified seal leaking.
Post Info TOPIC: Please help - unidentified seal leaking.
tripodtiger


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Please help - unidentified seal leaking.
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What is this seal?  Is it a seal?

It's not shown on the Yamaha Parts Finder microfiche that I access on line.  I forgot - 2002 TTR in Oz.

IMGA0109.JPG

The bolt behind drains the oil from the left side exhaust cam well.

 

 



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In the Riverina.

'73 RD250, '80 XS1100, '81 RD373LC, '96 Tiger 900/sidecar, '02 TTR250, and another XS11 - this time a chain drive Period 5 race bike that may be ready to race eventually.
tripodtiger


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Talcum powder, if you are wondering. To identify the source of the leak.


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In the Riverina.

'73 RD250, '80 XS1100, '81 RD373LC, '96 Tiger 900/sidecar, '02 TTR250, and another XS11 - this time a chain drive Period 5 race bike that may be ready to race eventually.
TTRfan


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Hi Ray

It's almost certainly the decompressor plug that's leaking - see here and here for replacement options.

Fitting guide here

A nice easy fix biggrin

Brian



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tripodtiger


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Yep, that is definitely it. Happy to have not levered it out. I can tolerate the leak for a week or two, now that I understand it.

So, thank you for the confirmations. I just ordered the custom replacement part, plus the axle spanner and clutch tool. Who doesn't like custom parts and tools?


The online shop is easy to use too. Congratulations on that.

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In the Riverina.

'73 RD250, '80 XS1100, '81 RD373LC, '96 Tiger 900/sidecar, '02 TTR250, and another XS11 - this time a chain drive Period 5 race bike that may be ready to race eventually.
ttr steve


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appreciate the feedback and thanks for the ordersmile

Steve



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tripodtiger


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Done.  Easy, peasy.

Except for the remnants of the plastic of the oem seal that stayed behind.  You can see the portion that broke off.  Essentially glued itself to the aluminium.

IMGA0314.JPG

 

Like this...

IMGA0317.JPG

Choice, Joyce!

IMGA0318.JPG

 

Should do the trick.

IMGA0319.JPG

 

Maybe all the old oil and dirt will gradually burn / clean off now.  Bit of elbow grease required

 

 



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In the Riverina.

'73 RD250, '80 XS1100, '81 RD373LC, '96 Tiger 900/sidecar, '02 TTR250, and another XS11 - this time a chain drive Period 5 race bike that may be ready to race eventually.
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