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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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Old 14 Jul 2010
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Swing arm protector seems too big?

Hello all,

Bike XT600 43F

I am replacing the round buffer that protects the swingarm from getting eaten by the chain.

It looks like a round (plastic) collar then a metal shim sits inside then this assembly goes on the swing arm at the front where the pivot bolt passes through.

Problem is the assembly is really loose 2mm+ clearance which seems would flop around quite a bit. Also as this assembly spins around it is effectivly metal on metal as the inner part of the buffer is metal and the outer part of the swingarm seal is metal.

Doesn't seem right? Anyone changed this recently and have some guidence?

Stupidly, I binned the old buffer long ago and can't remember if it fit loose or not?????

I'll try and dig up a picture of the bits. In this case a single picture is worth much more than a thousand of my words!

Many thanks,

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Old 14 Jul 2010
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Hello again,

Found a diagram of the parts in question.

In the linked image below Buffer is #11 & 12 and it sits on #6.

Gap between 6 & 12 seems too big????

OEM Parts Yamaha XT600S 1986 SWING ARM - Cheap Cycle Parts

Thanks for your help!

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Old 14 Jul 2010
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I have a 2003 XT600E. I have also noted that the roller mechanism is "sloppy". Maybe a case of "they are all like that sir!"
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Old 16 Jul 2010
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So I've gone and mounted this thing up. It still looks wonky and wobbly.

Anyone else changed this bit out before and care to comment? The metal on metal just doesn't seem right.

Would prefer to fix it now(as required) rather than when the whole bike is put back together.


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Old 16 Jul 2010
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One question...

Are you really talking about the swingarm protector or are you talking about the chain rollers?

The swingarm protector usually sits securely around the swingarm and the rollers roll....

Never to say that there are some cheap rollers out there that are just too flimsy to start with...

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Old 16 Jul 2010
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I just cheked your link to the chart. I've seen those parts very loose. Shouldn't be a problem. Theres not really stress on thoose parts. Lube 'em slightly up and your good to go.
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Old 17 Jul 2010
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Thanks for the vote of confidence . I'll do as you suggest. Actually I pumped a little grease into the swingarm on assembly and a bit squeezed past the seal so I'm good to go.

Not talking about the rollers. The bike has two swing arm protectors. One as I documented above and one in the conventional location, as you described.


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Old 17 Jul 2010
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just rebuilt an 85 tt600 with new collar and metal shim. old one was loose as is the new parts. same set up on my 85 yz--loose also.
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