(04-11-12, 10:17 PM)philshaq link Wrote: hi all,
noticed that since adjusting the chain for the first time since owning, (it was very slack, about 10cm of play), that there is a strange clunking coming from near the front sprocket, it only seems to do it on pulling off / at slow engine speeds (or its too loud at speed to hear it).
Any suggestions on what it could be? I checked the chain again today and it needed adjusting, so thats going to need changing, I'm just hoping the clunking isn't anything serious. Is there a bearing on the sprocket that could have gone?!
Thanks for your comments
I've had a similar problem to this. The initial problem was simply a worn (clicking noise) front sprocket, so I fitted a new DID chain and sprocket set.
However the DID Chain lasted only 5000 miles (original yamaha one did at least 15k) before a tight spot developed, back came the clicking and also a whooping sound around 50mph.
Cue another chain and sprockets and all is ok.
Check the free play all the way round the chain is the same at several points. If you are unable to adjust the chain to the correct setting all the war round, then its time for a new one!
I've been told that if a bike stands for a long time, without the chain moving, these tight spots can develop and ruin the chain.