Kawasaki Vulcan Forum banner

1 - 20 of 21 Posts

·
Premium Member
Joined
·
257 Posts
Discussion Starter #1 (Edited)
OK Guys,

2009 V2K. I have begun to experience a very loud chirp from the bike. It is loudest in gears 3,4,5, and only heard when driving with gears engaged. If I am going 70mph with loud chirp in 5th gear, chirp stops when pulling in clutch. Any ideas anyone before I go to dealer? Hard to tell where it is coming from while riding. Could it be from within gear case?
 

Attachments

·
wocka, wocka, wocka
Joined
·
5,618 Posts
chirp has always been associated with a too loose belt when under load. assume you ruled that out? belt should be tighter than you would think. these are industrial grade belts can take the stress, but do not like to be loose. poncho
 

·
Premium Member
Joined
·
257 Posts
Discussion Starter #3
OK, I have a dumb question. Isn't the belt still turning at 70MPH with clutch disengaged?
 

·
Bike Of The Year Winner, 2012
Joined
·
4,905 Posts
first things first....

You sir, keep holding out on pics of your bike.

I REALLY like what you have done.. how about posting more pics of it? From various views.

Second.

Your belt is chirping.

If the belt is to tight.. it chirps.

If the belt is to lose... it chirps.

If the wheel is not aligned (more tension on one side of then the other).. the belt chirps.

Some people HATE it does that.. but I view it kind like the bike is telling you something is wrong. Kind of like when your car brakes start to squeal...
 

·
wocka, wocka, wocka
Joined
·
5,618 Posts
No dammit! its not a Song Bird..

Some people HATE it does that.. but I view it kind like the bike is telling you something is wrong. Kind of like when your car brakes start to squeal...
Ive owned, ridden, wrenched this bike for going on 8yrs. mostly never, no issues with belt chirp. if I did, it was resolved in short order. I swap out two rear wheels often(<15min) as I have one each fitted w/cartire and mc donut, depending upon what mood am in and where how I plan to ride.
2yrs ago, I swapped rears and took the RedBear'n to Why O'ming. I musta failed to adjust the belt accordingly as it waited till I was deep into the week and mountain terrain b4 starting its morning bird chirp song. It wasnt always there, but just enough to bug the living shit outa me and annoy, take away from the moments. I didnt bring my lift with me on the trip, so was reduced to adjusting the belt from underneath while fully loaded on side of the road.. did this several times.. still that annoying chirp was persistant.. would come and go depending upon how great the scenery was.. the more beautiful it was or the more I was Zenning out, then this Song Bird would chime in.. probably was getting in the moment and wanted to sing praises, etc..
back home, everyday ridding. not a chirp outa her.. wtf! poncho
 

Attachments

·
Registered
Joined
·
43 Posts
Here is a couple of easy ways to get rid of the chirping...

Turn up the tunes if u have a stereo installed

Debaffel or install after market pipe

quit pulling the go stick so far
 

·
Registered
Joined
·
43 Posts
I didn't see but is it on a stand and in gear or is it in neutral? That is the exact sound mine makes under a load in any gear. A hard load.
 

·
Registered
Joined
·
43 Posts
If u figure the exact location and cause of the v2k squeal u probably will get a big slobbery kiss and bear hug from every one that ownes one of these beast!
 

·
Registered
Joined
·
35 Posts
I might pass on that kiss. But I'm going to do what ever it takes to get some answers. I just swapped engines to to see what would happen. Same noise at the same speeds.. Just not as bad as the first.. The mystery continues..
 

·
wocka, wocka, wocka
Joined
·
5,618 Posts
On a dyno in 5th gear. gets bad around 50 then goes away at 60mph and comes back at 70 thru 73 or so.
I told my doc that it hurts when I do this... he said "quit doing that"!
so 60 is not bad. just ride that speed.?
 

·
Registered
Joined
·
702 Posts
some years ago, I had that chirping noise, kept trying to adjust the belt "just right."
Spent days fiddling with it, always trying to keep the belt in the center of the pulley, focused on the tension.
Once I let it ride slightly to the left, the chirping quit. It wasn't the tension as much as it was the alignment, it appears.
 

·
Registered
Joined
·
35 Posts
Well, i cant speak for Robotic's noise but mine is metal on metal. I elimanated the belt as a possibility long ago. Please view the video. and tell me if you disagree.
 

·
Registered
Joined
·
228 Posts
The belt squeal is the nature of the beast, no pun intended.

A while back a made a [email protected]$$ mistake put the real wheel back on with the spacer in the wrong spot and ate through two sets of bearings. Result of that i spun the spacers against the frame and ate in the frame a touch. Bought new spacers and so forth but, the new ones no matter how hard a torqued the axel nut down would still spin when i gotten into the torque. So i decieded to add a set of locking washers (special kind that is a set that grip really well) So that worked for that issue but created another it offset the whole rear wheel assembly over just ever so slightly, so if my wheel is out of square any bit the belt squeals because it is riding up on the side of the hub over so much.
Doing a little reaserch, plus i am a ME working for a OEM of large processing equipment, I found it is not the riding on the side that makes the squeal it is how it forces the cogged portion of the belt to enter and leave the pullies. One, to loose the front pully will squeal becasue the slack in the belt is causing the cogg to ride in its groove to long and then poping out on the top side of the pully. Two, to tight the back pulley will squeal from the bottom side of the pulley as the cogg leaves the pulley it is so tight it jumps ship prematurely, when it does it pops out. Lastly, and the most likley culprit, if the belt is out of square to either pulley it locks the coggs in tighter and they wont want to disengage so the ride around longer than supposed to then finally pop out with much force.
 

·
Registered
Joined
·
13 Posts
Good to read about this as I am not a fan of that belt music, though I've got used to it enjoying the bike anyway, loud pipes are handy too ..

The belt itself is quite wide, I believe this plays some role here while we are trying to synch both pulleys

How about using a bit less wide ones? Falcon or Gates seem to be good - 133T, 1.1/2'' ....so about 38mm (my belt is 40mm)

http://www.beltdrives.com/reardrbelt2.html
 

·
Premium Member
Joined
·
257 Posts
Discussion Starter #20
Tightened the belt and that chirp went away. Big Dawg, it sounded just like yours. Sounds like metal on metal bur it wasn't.
 
1 - 20 of 21 Posts
Top