DannyC
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| posted on 29/4/09 at 12:43 PM |
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Checking Timing Chain - Motorbike
I am seeking some help, from the wealth of knowledge out there!
My son has a Yamaha XT 350, in bits, and wants to know how to check the timing chain for wear.
He has searched the web (not sure to what extent), but has had no luck. Does anyone know where I might be able to find this kind of information?
Many Thanks
Danny
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sickbag
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| posted on 29/4/09 at 01:15 PM |
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If you can get hold of a shop manual for it then the acceptable limits will be in there - usually a measurement between a set number of lnks. A phone
call to a local dealer might help.
The only other way is to compare it to a new one.
Finally back on the job!
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02GF74
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| posted on 29/4/09 at 02:49 PM |
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same as any other chain really.
keep the chain taught - then measure distence from cnetreo of pin for 10 links and compare that value with a new chain.
for my road bikes, chain is worn if it has elongated by 1 % as otherwise it will skip over new sprockets.
bear in mine that cam chains run in oil so should lat a hell of a lot longer.
also the 1% applies to a new chain not skipping on old sprockets, if you are using old sprockets and old chain, they will have worn together so should
be ok.
how much is new chain and sprockets? if cheap, then I would not mess about measuring but buy new items.
there is anotehr method of seeing how far the chain has bent sideways due to wear but offhand cannot rememnber the details.
not sure if that has helped or not.
also if the sprockets
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DannyC
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| posted on 29/4/09 at 03:35 PM |
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Yes that's true, but that means buying a new chain first, which is why I am trying to find out first.
The bike is not worth a lot, and my son does not have much money, so if it's not necessary he would rather not spend the money.
Danny
[Edited on 29/4/09 by DannyC]
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sickbag
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| posted on 29/4/09 at 06:47 PM |
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I've got a copy of the service manual if you want it - u2u me your email address.
Finally back on the job!
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