Weird sound

[liljon140]

OK I have an odd sound while my bike is under a load.  It is a kind of grinding sound but not in my motor.  I can put it on the center stand and run it in neutral with no sound but when i put it in gear i get aliitle bit of  the noise just not as loud as if I were riding it and the chain seems to jump a good bit as the sound occurs.  I think it is my front sproket and chain  as I noticed some wear on my front sproket when i cleaned it up last week.  I  have noticed the sound much more since I cleaned all of the gunk out if it.  i have 14500 miles on my bike could i possibley need a new sproket and chain this soon.  My rear sproket looks good.  I am not good about oiling my chain I know maybe every 1200 miles or so. (yeah I know I suck, im an electrician not a mechanic)    any thoughts would be great and if any of you know where I can get a new chain and sproket or at least what part # and sizes that would be great thanks.   Oh and I have not noticed any loss in power I dont know if that matters but I thought i throw that in there.   Thanks

Jon

[briandor]

Funny you should post this.  I just started having the same thing happen.  I also get a little bit of a thumping that I can feel im my left foot peg when I'm rolling along and pull the clutch and coast.  I just pulled the wheels and had new tires mounted.  I'm thinking that maybe when I re-mounted the rear wheel I didn't align it properly and the sound and thumping is the chain catching the sprocket teeth a little.  I am also noticing a good bit of chain jump as well.  I'm going to have a look at it this afternoon and check out the alignment.

[ohgood]

yikes, check your chains and cogs!

[smoker]

I just ordered new chain and rear spkt from BikeBandit.com.  OEM is 520-110 chain, 16t. front spkt., 39 t. rear.  Might  as well drop a tooth in the front and get the 15 if you're changing it out anyway, will give you better acceleration at the expense of a few mph lower top end, if that tickles your fancy.  I'm currently running a 15t. front with the 110 stock chain.  When my 44t. rear comes in, I need to step up to a 112 chain...  I posted about this recently (SEARCH SEARCH SEARCH BEFORE U POST OR U'LL PISS OFF PEOPLE HERE, just a tip).  I'll see if I can find it for ya and link it....

[smoker]

And here ya go....

http://gstwins.com/gsboard/index.php?topic=34591.msg385321#msg385321

[ducati_nolan]

Sounds like you probally need a new chain and maybe new sprockets.

Check your chain tension though, it soundl like you may have too much slack and if you tighten it up it may help.

[liljon140]

Thanks for the suggestions.   I think I will change the front sproket and chain and give that a try.  Is there any brand that should just be avoided or recommened over another.   I dont want to put a $200 chain on a $2000 bike you if you know what i mean.  Also is there any website recommend over others I do not use EBAY. 

Thanks
Jon

[Jughead]

Just go with a Good Quality RK,Regina or DID Heavy Duty Chain.