clutch noise and chain popping noise

[OB_ducmanic]

Cisco,
The "Loud Bang" was one or more teeth on your counter shaft sprocket shearing off. See
my post "Loud Bang? Check yourcountershaft!!!" 08-22-99 i think. You can still use your bike. You need a new chain and sprockets. Sounds like you have been doing burnouts to me.
ducmanic
Los Angeles

[OB_Cisco San Jose]

Notice lately 1,800 miles on bike that my clutch is making alot of noise when warming the beast up in the morning or even after a normal ride.This happens only in neutral and if I hold in my clutch lever the noise will go away.Is the clutch out of adjustment or is it ready to go/blow?I need to know cause I've been doing a couple of 160mph runs and will attempt the 200mhp run but I do not want the bike to blow it's clutch when trying for the 200mph mark.Second question I adjusted my chain for about a 1/2 to 1/4 sag at mid point,but my chain still makes a popping sound and I have two adjustment settings left on the swing arm,this chain noise happened after I open the beast up after doing a 10mph rolling start and a popping noise came from the chain area or front sprocket,it was a loud bang like a gun went off so I thought it was the chain adjustment.Did the chain adjustment but the chain noise is still there or did I lose a teeth on the front sprocket or worse.Need some advice or wisdom.Thanks

[OB_Dirty Pete]

Dunno...Here's what I'd do:

I'd stop using the bike until the problem's solved and fixed.

Check the oil level to see if the clutch is too far out of the oil bath (unlikely).

Does the clutch noise happen at all idling speeds? If it's at only one speed, it's just a sympathetic vibration and that's harmless. My Busa does that in a microscopic rev range.

Have you had clutch slipping problems after repeated severe launches? If so, you may have developed plate wear and spring problems.

Have you been cleaning and lubing your chain often enough?

MY DIAGNOSIS: Sounds like your chain has been way too tight, and that could cause a lot of drive train problems...right through to the clutch. Don't set it by passive sag. On the side stand, put a tape measure beside the lower portion of the chain at mid-point and actively lift the chain upward. Your travel must be between .8 inch and 1.2 inches. If you've had it as low as .25 inch, that's trouble for sure.

If you've had the chain way too tight all along and have been using it hard, it's probably internally damaged and this may be your "popping" noise.

If it turns out your chain has been kept too tight, have a mechanic replace the chain and inspect for collateral drive train damage.



[This message has been edited by Dirty Pete (edited 26 August 1999).]

[OB_BigPete]

The clutch noise at tickover is 'normal'. At least that's what I was told when the dealer listened to mine and then started a brand new Busa.....and it was the same, but a little quieter.
The loud bang might of been the anti wheel lock thingy.......mines being replaced next week under warranty. I had a tight chain when it first started clunking......ooops.

[OB_Cisco San Jose]

Thanks Dirty Pete
The clutch noise is only at 500/1000rpm and none above that,no clutch slipage,but the stock clutch sucks.The chain is cleaned and oiled every Friday or Saturday morning.Doing my next oil change this weekend and will look for metal flakes in the oil.I'm switching over to Golden Spectro oil,same oil I used in my 89 Gsxr1100.The chain problem happened after the 10mph rolling start to full power on.The chain did slap around before so that is why I did my chain adjustment.I went down to the dealers show room floor to check on their chain on the bikes that were there and they were alot tighter than my bike when checking at mid point static check with no weight on the bike.

[Guest]

Idle speed should be 1050-1250. If it's a bit lower than this only when cold/during initial startup utilize the fast idle lever (aka choke lever) until the bike warms up and idles at spec. Adjust idle to factory specs (1050-1250) only after bike is warm using the idle adjustment screw. Sorry if you already know all of this - just trying to help. We shouldn't really ever see idle speeds below 1000 for any length of time.

[OB_VegasDude]

This clutch noise is normal, my zx11 did it too. Once the bike warms all the way up it goes away....................