Trying To Find Unkown Sound

check your chain rollers

chain roller looks good, nothing is broken or cracked.

any other suggestions?

its sounds like rubbing chain but it might be something else.

the chain and sprockets naturally make noise as they come in contact with each other... are you sure that isnt what your hearing? just natural chain racket?

also, your head tends to make a noise similar to what your describing, but you usually only hear it when the seat and air box lid are off, so that probably isnt it...


any chance a bearing is starting to go and your hearing it grind out?

QUOTE (leveldrummer @ Mar 13 2009, 11:47 AM) index.php?act=findpost&pid=757368

the chain and sprockets naturally make noise as they come in contact with each other... are you sure that isnt what your hearing? just natural chain racket?

also, your head tends to make a noise similar to what your describing, but you usually only hear it when the seat and air box lid are off, so that probably isnt it...


any chance a bearing is starting to go and your hearing it grind out?[/b]

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Check your water pump bearing, we had one making noise like that but it didn't leak. and that was on an 08 with about 20 hrs on it

What does the chain roller on the swingarm skidplate look like?

QUOTE (leveldrummer @ Mar 13 2009, 09:47 PM) index.php?act=findpost&pid=757368

the chain and sprockets naturally make noise as they come in contact with each other... are you sure that isnt what your hearing? just natural chain racket?

also, your head tends to make a noise similar to what your describing, but you usually only hear it when the seat and air box lid are off, so that probably isnt it...


any chance a bearing is starting to go and your hearing it grind out?[/b]

Click to expand...

it does not sound like the natural sprocket and chain contact, it is louder than natural contact.

not sure how does a bring sounds on bikes, on cars when the bearing is about to go it whines. i will have a look on the bearing.

i don't think its from the head, the sound is mostly right under the seat or behind, nothing from the head side.

QUOTE (climb-101 @ Mar 14 2009, 12:39 AM) index.php?act=findpost&pid=757453

Check your water pump bearing, we had one making noise like that but it didn't leak. and that was on an 08 with about 20 hrs on it[/b]

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I will check it out tomorrow, i think mine has 50-60+ hours on it, not sure how many hours the previous owner did put on it. i drove it around 31 hours since i bought it.

QUOTE (Sidewinder @ Mar 14 2009, 12:41 AM) index.php?act=findpost&pid=757456

What does the chain roller on the swingarm skidplate look like?[/b]

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It looks normal. Yesterday i lined my bike with my friends bike and i compared between my chain roller and his chain roller and it looked the same and nothing abnormal. I will take a picture of the roller and i will post it here.

hey dont worry when in high gear and your going slow the chain tends to slap skidplates or other parts making noise thats not kool. next time it happens just pick the pace up a little and it will go away

QUOTE (08yfz45031 @ Mar 14 2009, 01:34 AM) index.php?act=findpost&pid=757479

hey dont worry when in high gear and your going slow the chain tends to slap skidplates or other parts making noise thats not kool. next time it happens just pick the pace up a little and it will go away[/b]

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When i down shift the sounds disappears on straight lines, for hill shooting even if i down shift that doesn't work it gets louder haha. In hill shooting i get the sound at greater heights not from the beginning of the hill.

p.s: i get it only at the dunes, on road i don't get that sound even with high gear and am going slow.

it looks like your chain is really really loose, your probably just hearing it slap around on the skid plate and the rollers as the swingarm goes through its motion. try tightening it up to spec.

your chain DOEs look really loose in the pics.

I had a weired grinding sound from my chain also. It happens mostly in 3 gear just cruising with light acceleration. It gets really loud if I slam on the front brakes and decelerate real fast. Kinda like chain chatter, but it sounds like a bad wheel bearing.

I checked my chain roller also and it seemed to be fine. My bike only has about 6 hours on it.

I thought mine was maybe from the timing chain, but I can't identify exzactly where the sound originates.

Today i tightened the chain, next weekend am going to hit the dunes and i will update you about the sound if its still there or not. Thank you to every one who participated in this thread.

today i went out after i tightened the chain, guess what? the sound is still there :S

any suggestions what else could be causing the sound?

Replace that skid plate or take it off for a moment while you are on the dune and see if the sound will go away, that skid plate looks tweaked as if the chain would rub on it while the swing arm moves up and down.

QUOTE (YFZ450Lynx @ Apr 24 2009, 10:56 AM) index.php?act=findpost&pid=773452

Replace that skid plate or take it off for a moment while you are on the dune and see if the sound will go away, that skid plate looks tweaked as if the chain would rub on it while the swing arm moves up and down.[/b]

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Hey.......... I was going to say that. LOL

i will try that out.