When should you consider changing your chain and sprocket? - SV650.org

06-08-10, 07:08 PM

As the title suggest, whens a good time to change them....mine look a little umm rustyish dirty.....oh and would changing your fuel and oil filters, make a big difference to performance....?

Cheers

Tommo

Mr Speirs · 06-08-10, 07:22 PM

Change Chain when it is at the end of it travel on the adjusters or when it's needing adjusted every few days or so. Sprockets when they become hooked.

Fuel filters if there was a possibility of fuel starvation if it were partially blocked, I'd change the oil filter when I dropped the oil on a service. HTH

06-08-10, 07:44 PM

I changed mine because of an advisory on the MOT. The front sprockets were hooked, i could pick the links up off the rear spockets, and like Mr speirs says always needs adjusting.

Saying that even my new chains need adjusting constantly, must be the way i ride.

Sid Squid · 06-08-10, 08:35 PM

Chain wear can be estimated with a useful 'rule of thumb' test; sit on the floor by your bike and grip the chain at the three o'clock position on the rear sprocket, pull it backwards as firmly as you can, if this exposes more than half the height of the tooth on which the link you're gripping sits upon the chain is worn out.
Obviously there are other factors that determine whether a chain is usable or not, if it's an 'O' or 'X' ring chain are the seals damaged or missing? Are there any tight links? Are there any missing rollers?
Very generally speaking surface corrrosion is not a cause for concern, but if the chain is very rusty and doesn't run neatly over the sprockets the chain is suspect. Also look at the sprockets, if the teeth are hooked, that is when viewed from the side they are not symmetrical and show a peaked rolling over apperance like the crest of a wave, then they're knackered too, don't rely on looking only at the rear sprocket for that, the front sprocket wears much faster.
If you have a Haynes manual in it you will find pictures that show the shapes of the teeth on new and worn sprockets.

andrewsmith · 06-08-10, 09:44 PM

as Sid.
the test described is the best way.
to give a typical mileage (this is dependent on a lot of factors) a well oiled and adjusted chain will last around 12-15k before it gives up the ghost

Bibio · 07-08-10, 10:31 AM

Quote:

Originally Posted by beabert

I changed mine because of an advisory on the MOT. The front sprockets were hooked, i could pick the links up off the rear spockets, and like Mr speirs says always needs adjusting.

Saying that even my new chains need adjusting constantly, must be the way i ride.

time to fit a scottoiler.

06-08-10, 07:08 PM	#1
tommo891 Guest Posts: n/a	When should you consider changing your chain and sprocket? As the title suggest, whens a good time to change them....mine look a little umm rustyish dirty.....oh and would changing your fuel and oil filters, make a big difference to performance....? Cheers Tommo

06-08-10, 07:22 PM	#2
Mr Speirs Member Mega Poster Join Date: Jul 2008 Location: Northampton Posts: 2,218	Re: When should you consider changing your chain and sprocket Change Chain when it is at the end of it travel on the adjusters or when it's needing adjusted every few days or so. Sprockets when they become hooked. Fuel filters if there was a possibility of fuel starvation if it were partially blocked, I'd change the oil filter when I dropped the oil on a service. HTH __________________ Smokey Black Burnty 02 - Racetech Smoulderlators + .90kg BBQ Springs, zx10r shockingly toasted, Conti Road Attacks heat up very nicely, R&G Crash Bungs but what f**king use are they, No Colour Matched Hugger, Flame Extenda, Beowulf Titainium Oval Flame Thrower.

06-08-10, 07:44 PM	#3
beabert Guest Posts: n/a	Re: When should you consider changing your chain and sprocket I changed mine because of an advisory on the MOT. The front sprockets were hooked, i could pick the links up off the rear spockets, and like Mr speirs says always needs adjusting. Saying that even my new chains need adjusting constantly, must be the way i ride.

06-08-10, 08:35 PM	#4
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: When should you consider changing your chain and sprocket Chain wear can be estimated with a useful 'rule of thumb' test; sit on the floor by your bike and grip the chain at the three o'clock position on the rear sprocket, pull it backwards as firmly as you can, if this exposes more than half the height of the tooth on which the link you're gripping sits upon the chain is worn out. Obviously there are other factors that determine whether a chain is usable or not, if it's an 'O' or 'X' ring chain are the seals damaged or missing? Are there any tight links? Are there any missing rollers? Very generally speaking surface corrrosion is not a cause for concern, but if the chain is very rusty and doesn't run neatly over the sprockets the chain is suspect. Also look at the sprockets, if the teeth are hooked, that is when viewed from the side they are not symmetrical and show a peaked rolling over apperance like the crest of a wave, then they're knackered too, don't rely on looking only at the rear sprocket for that, the front sprocket wears much faster. If you have a Haynes manual in it you will find pictures that show the shapes of the teeth on new and worn sprockets. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

06-08-10, 09:44 PM	#5
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: When should you consider changing your chain and sprocket? as Sid. the test described is the best way. to give a typical mileage (this is dependent on a lot of factors) a well oiled and adjusted chain will last around 12-15k before it gives up the ghost __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

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