thunderass Posted December 5, 2005 Share Posted December 5, 2005 Hi all. Merry Christmas. Help please. I fitted a new chain and sprockets to my Thundercat two weeks ago and i am now getting a whirling noise as i throttle up. I have checked chain tension and used a tape measure to make sure the rear wheel is spaced correctly , so is aligned with the front. Is this normal with new chain fitments and will it wear away or am i missing something. Any help would be most welcome as i am now pulling my roots out as i have run out of hair! Many thanks Paul aka Thunderass. Link to comment Share on other sites More sharing options...
Moderator YamaHead Posted December 5, 2005 Moderator Share Posted December 5, 2005 Paul..... Does this noise only occur when you're throttling up? If you can, try rolling down a hill with the motor off to see if you can still hear it?......just to be sure it's coming from the drive chain ......It could be that it's typical run-in noises from a new chain. Also be sure to lube the chain well too. Hope this helps Link to comment Share on other sites More sharing options...
thunderass Posted December 6, 2005 Author Share Posted December 6, 2005 Paul..... Does this noise only occur when you're throttling up? If you can, try rolling down a hill with the motor off to see if you can still hear it?......just to be sure it's coming from the drive chain ......It could be that it's typical run-in noises from a new chain. Also be sure to lube the chain well too. Hope this helps Yamahead. Thanks for the reply. I can close the clutch and free wheel down hill and the noise stops. It only occurs when the throttle is open. Today though it was worse and i was also getting vibrations through my feet. This was on a motorway. Any thoughts? Thanks Paul. Link to comment Share on other sites More sharing options...
sheeny7 Posted December 6, 2005 Share Posted December 6, 2005 Hi mate,if your free wheeling it prob wont be as bad due to not being under tension.. But with it doing since changing chain does seem to point to that..you dont what a prob with a gearbox. Did you change front sprocket and its not come loose.. Link to comment Share on other sites More sharing options...
thunderass Posted December 10, 2005 Author Share Posted December 10, 2005 (edited) Thanks for the replies. I checked both sprockets and chain for correct tensions. All these parts i renewed three weeks ago. They are well lubed with scottoil, i can spin the rear wheel freely on a stand and the engine sounds sweet when idle or reving. As soon as i speed up the noise starts. Then as i slow it reduces? Can this be run in or has anyoen else had faulty sprokets or something. The parts are all OE. Thanks Be safe. Thunderass Ps The gears change nice and smooth. Edited December 10, 2005 by thunderass Link to comment Share on other sites More sharing options...
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