new chain

Adel · Post by **Adel** » Wed Oct 18, 2006 11:50 pm

can some help me please? I went to a bike shop today and got a new

chain put on my zxr 750 and when I took the bike for a run It starts to

get really noisey when I reach 60 k, and seems like something is holding

it from opening up slity is that normal for a new chain to do that, I did

notice the machanic put some of that white grease they put on chains,

could it be he might' ve tensioned the chain to much ? I wouldn't know guys what should the tension be

cheers fellas

Post by **MadKaw** » Thu Oct 19, 2006 7:26 am

The chain should move up and down about 25 to 30mm on the lower side of the chain.
Also check the rear wheel alignment via the lines on the rear axle washer...

BladeBoy · Post by **BladeBoy** » Thu Oct 19, 2006 7:27 am

Did the mechanic replace the sprockets as well?, the chain should have about an inch movement up and down at the centre of the chain with the bike on the side stand, good luck..

Adel · Post by **Adel** » Thu Oct 19, 2006 8:48 am

I gather from your reply the noise isnt normal, well the machanic said the

sprokets look ok don't need chainging and you guys are spot on, the

chain is about an inch u n d movement, alignment also looks ok, could it be

that not enough lube on the chain?

cheers for the reply

hoffy · Post by **hoffy** » Thu Oct 19, 2006 9:24 am

its hard to say, but it may just need a little wearing in ?

javaman · Post by **javaman** » Thu Oct 19, 2006 9:51 am

I would suspect the grooves of the sprockets does not match the chain due to wear ? Try loosen up the tension to see if it gets better.

It is generally a good idea to change sprockets and chain at the same time.

BikerBoy · Post by **BikerBoy** » Thu Oct 19, 2006 10:57 am

I'd definitely recomment changing your sprockets when you change your chain.

The chain is much more expensive than the sprockets, so its not that expensive to do both at the same time.

I'd say thats where you problems are arising, running a new chain with semi-worn out teeth on your sprockets.

I'd try ensuring the tension is right like the guys above suggested and take it for a couple of long rides. This may help by wearing in your chain. If the problem doesn't go away, take it back and replace your sprockets too.

MickLC · Post by **MickLC** » Thu Oct 19, 2006 11:51 am

I agree...not changing your sprockets when doing a chain is false economy

BladeBoy · Post by **BladeBoy** » Thu Oct 19, 2006 12:17 pm

BikerBoy wrote:I'd definitely recomment changing your sprockets when you change your chain.

The chain is much more expensive than the sprockets, so its not that expensive to do both at the same time.

I'd say thats where you problems are arising, running a new chain with semi-worn out teeth on your sprockets.

I'd try ensuring the tension is right like the guys above suggested and take it for a couple of long rides. This may help by wearing in your chain. If the problem doesn't go away, take it back and replace your sprockets too.

That is if the old sprockets have not already damaged the new chain

Adel · Post by **Adel** » Thu Oct 19, 2006 1:00 pm

thanks for replies I don't know much about machanicals on bikes so when machanic said you don't need to change sprokets I said you know best paid and left, if prob continues I def change the sprokets
thanks again

thatp1g · Post by **thatp1g** » Thu Oct 19, 2006 7:29 pm

not 100 % happy, take it back to the shop.

You might feel a bit silly if it is nothing to worry about.

You might save yourself a bunch of money and some skin if it is something serious that they have fucked up.

Either way, up to you. But I would have it back to the shop.

If your sprockets are worn enough to make a bunch of noise then they are gonna kill your new chain in no time.

Adel · Post by **Adel** » Sat Oct 21, 2006 1:17 am

You talkd me into it, I made an appointment for bike on monday,changin the sprokets

Adel · Post by **Adel** » Tue Oct 24, 2006 11:05 pm

well I got sprokets replaced, and thanks to you fellas most of the noise is gone, its much better now

cheers
adel