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Weird knocking...

This is a discussion on Weird knocking... within the General Discussion forums, part of the Kawasaki World category; So, I just got my 12 out of the shop; my charging system died on me so I had a new one installed. It rides ...


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Old 05-27-2012, 07:21 PM   #1
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Weird knocking...

So, I just got my 12 out of the shop; my charging system died on me so I had a new one installed. It rides great and all (with the exception of needing a PCIIIUSB...)... but I noticed when cruising in 6th gear going about 40mph I could feel this 'knocking' through the foot pegs as I accelerated. The more I accelerated the faster the knocking got. I dropped down a gear and couldn't feel it anymore... went back into 6th and it came back... at about 50mph idk if the knocking stopped... or just got to a point where it was too fast to feel... but when I slowed back to about 40mph it was back again. I tried to lay my head off to the side to listen and I could hear what almost sounded like a banging coming from the engine compartment...

... anyone have any idea wtf that could be? Bike feels like it's running just fine and I can only hear it when I'm in 6th and going slow...
   
 
Old 05-27-2012, 07:24 PM   #2
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Damn. This motor is full of mysterious shit.
   
 
Old 05-27-2012, 07:30 PM   #3
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Damn. This motor is full of mysterious shit.
Right? I have had the worst luck with this bike

Between my headlights not working... Faulty Batteries... buying a brand new tire and getting a nail in it about a week after getting it installed... my ECU board going to shit... PCIIIUSB dying on me... Charging system dying... etc... granted most of this isn't necessarily the bike, it's still frustrating because it all usually equals the same thing = I can't ride my beloved 12
   
 
Old 05-27-2012, 07:45 PM   #4
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You'll have a new 12 by the time you're done... (The silver lining....)

Yeah. My motor has a strange knock in it as well. It appears to go away on revvs but I found that it doesn't. I'm gonna try that idea rundog I think it was gave me about the tensioner.

Yours sounds to be something in the transmission. But if it was missing a tooth, you'd think it'd get worse the faster you go.
   
 
Old 05-27-2012, 07:51 PM   #5
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Quote:
You'll have a new 12 by the time you're done... (The silver lining....)

Yeah. My motor has a strange knock in it as well. It appears to go away on revvs but I found that it doesn't. I'm gonna try that idea rundog I think it was gave me about the tensioner.

Yours sounds to be something in the transmission. But if it was missing a tooth, you'd think it'd get worse the faster you go.
Might as well go ahead and bore this one out

My biggest concern is if I should stop riding it (which seems logical) or if it's okay to... because I'm sick of my 12 just sitting... been down for almost 2 months (2 months of not running 100%)... I never know what to do. lol
   
 
Old 05-27-2012, 08:22 PM   #6
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I gotta slight knock on warmer days. Do not hear it when it's cooler outside. I'm not worries about it. If it were a bearing it would have gotten louder by now, especially with the way I've been riding it.....
   
 
Old 05-27-2012, 08:30 PM   #7
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u lot have no luck aye? mine runs like new after 25k miles...sounds like it could be gear problems to me dude
   
 
Old 05-28-2012, 03:14 AM   #8
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Got a rear stand?
I'd be extremely cautious but it's a way to simulate running conditions
And be able to get a better vantage point.
You might be able to find a mechanics stethoscope at the autoparts store.
Or the poor mans method.... Long hard handle screw driver against your ear...
Just thinking out loud....
   
 
Old 05-28-2012, 05:04 AM   #9
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I gotta slight knock on warmer days. Do not hear it when it's cooler outside. I'm not worries about it. If it were a bearing it would have gotten louder by now, especially with the way I've been riding it.....
It has been really hot lately... maybe it'll go away when the weather warms... fingers crossed
   
 
Old 05-28-2012, 05:06 AM   #10
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u lot have no luck aye? mine runs like new after 25k miles...sounds like it could be gear problems to me dude
Mines getting close to 30... starting to think the previous owner didn't take care of the poor girl. If it was a gear problem wouldn't it get worse the faster I went?
   
 
Old 05-28-2012, 05:07 AM   #11
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Quote:
Got a rear stand?
I'd be extremely cautious but it's a way to simulate running conditions
And be able to get a better vantage point.
You might be able to find a mechanics stethoscope at the autoparts store.
Or the poor mans method.... Long hard handle screw driver against your ear...
Just thinking out loud....
Hmm... that's actually a really good idea. Thanks man!
   
 
Old 05-28-2012, 06:22 AM   #12
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This one makes that same slight knock mine does....
   
 
Old 05-28-2012, 06:43 PM   #13
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Quote:
... when cruising in 6th gear going about 40mph I could feel this 'knocking' through the foot pegs as I accelerated. The more I accelerated the faster the knocking got.
If the owners manual shows what gear you should be in, it is not in 6th then accel away @ 40 or high 30 mph, the speedo is off say.

Say, I say I say, shift down some gears. You are banging the bottom end and chattering the clutch basket, sir. That is my guess, 'it goes away when I'm in a better gear' sound like it's rider error?
   
 
Old 05-29-2012, 07:24 AM   #14
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feeling it in your pegs?

check your chain for proper adjustment.. look it over for tight spots
   
 
Old 05-29-2012, 12:23 PM   #15
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Quote:


If the owners manual shows what gear you should be in, it is not in 6th then accel away @ 40 or high 30 mph, the speedo is off say.

Say, I say I say, shift down some gears. You are banging the bottom end and chattering the clutch basket, sir. That is my guess, 'it goes away when I'm in a better gear' sound like it's rider error?
Is it bad (probably a stupid question ) to run in too high of a gear? To save on gas I try to get to 6th as fast as I can...

In other news, I listened a little better (hung my head practically right by the engine) and even when I switched gears I could hear the knocking and feel it through the pegs... bike runs fine otherwise.
   
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