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check your swingarm chain slider

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My bike is currently undergoing a overhaul/refit and its in a million pieces right now.

Im fitting a 280kit and the bottom end is coming appart too now (can of worms)

I found a broken cam chain tensioner, worn cam chain, missing cam chain guide(!?! how? lol) worn kickstart idle gear bushing and the countershaft bearing is worn and loose in the housing! (a common ailent i believe)

This means im having to split the cases and venture deep into the unknown! lol

But the most surprising thing ive found in my overhaul is the drive chain has worn through the chain slider and started eating into the swingarm!

wornswingarm.jpg

Its warped it so bad that the swingarm bearing jus fell out when i removed it.

Anyway, check your slider and replace it if its worn

(even tho its £40!!!! for a bit of rubber, outrageous)

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update on this;

I decided to fill up the groves with a bit of tig welder action (shouldv been no problem)

Worked fine, (splattered a bit but i thought nothing of it, im no pro and i can never get the gas flow right)

But when it came to removing the excess weld, i found my file hardly touched it?!?

i thought fair enough, angle grinder it is!:)

The grinder hardly touched it either, what the hell???

Then it dawned on me, id been using stainless steel welding wire! no wonder it was bloody hard!

What an ejit i know.

Ah well, the chain aint gonna wear thru that again in a hurry lol

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Hows that stainless gonna melt in with the aluminum? Wont it react?

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That's why I recommend not to run any more than 1 size smaller than stock counter sprocket. Which would be a 14 for an XR4 and I think 13 for a 250.

Curious to know what was on yours.

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Hows that stainless gonna melt in with the aluminum? Wont it react?

well by rights it shouldnt have worked at all, but it seems to have stuck on there surprisingly well. Im gonna run with it and see.

No doubt itl end in tears and my swing arm will snap in half when im miles from civilisation. Ah well hehe

Yes stock 13 tooth sprocket

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