secondary clutch noise..help

[EricMichael]

When put under full throttle the sled seems to make a ringing or sound of washers being pushed back and forth, but they say to leave the secondary alittle loose and not to shim it tight. Any help would be greatly appreciated.
Eric

 

[terret725]

make sure u ahve a good belt. my sled was making a funny sound from teh secondary. opened it up across the lake and bam secondary blew cause teh belt was bad went all teh way down and cought the ramp and sheared it off

 

[2000sxr600]

not trying to hijack ur tread but my clutch also does this kind of noise when i let off the gas and goes away when i accelerate or lock up the brakes....any ideas to my problem?