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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Simple step-by-step pictorial guide to replacing a sprag clutch
Post Info TOPIC: Simple step-by-step pictorial guide to replacing a sprag clutch
TTRfan


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Simple step-by-step pictorial guide to replacing a sprag clutch
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What do you think guys - useful?

Any errors or additions needed to make it clearer?

http://www.ttr250.com/Sprag_replacement/TTR_sprag_replacement.htm

Brian



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Lin


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Excellent Brian. Very clear and informative pics. I have read that the rear axle shaft bolt can be used as a flywheel puller if one is not readily available. I believe it's 14 x 1.25mm thread (could be corrected here) one could also purchase a short bolt to use as a puller?

Or does one run the risk of damaging the thread in the crankshaft end?



-- Edited by Lin on Tuesday 6th of December 2011 07:28:27 PM

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TTRfan


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Lin wrote:

Excellent Brian. Very clear and informative pics. I have read that the rear axle shaft bolt can be used as a flywheel puller if one is not readily available. I believe it's 14 x 1.25mm thread (could be corrected here) one could also purchase a short bolt to use as a puller?

Or does one run the risk of damaging the thread in the crankshaft end?

Thanks for the feedback Lin - much appreciated.

Yes, the rear axle can be used as a  puller - I had forgotten that. I have updated the web page.

A short bolt would do it as long as the "sides" were a tad deeper than the centre so that the threads for the flywheel retaining bolt aren't damaged. The Yamaha puller has a hollow centre. It was quite cheap I recall but can't remember exactly how much it cost...

Brian



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TTRfan


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I tried to record the "bang" before replacing the sprag but I think the microphone on my camera must have muffled it in some way as it doesn't sound that bad - see http://rides.webshots.com/video/3078972580057350080KPaZtc

Whereas in real life it made me wince  cry



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fwtian


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brian while i was looking the video i saw this exhaust!! http://rides.webshots.com/photo/2143083410057350080lQCeUL You still have it?



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TTRfan


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fwtian wrote:

brian while i was looking the video i saw this exhaust!! http://rides.webshots.com/photo/2143083410057350080lQCeUL You still have it?

Yep - it's still lurking in the garage! Email me at sales@totallyttrs.com if you are interested and I can send some pics etc.

Brian



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