Vibration.........HELP!!!!!!!!!!!!!!
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Joined: May 2007
Posts: 54
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From: Brandon Mississippi
Vibration.........HELP!!!!!!!!!!!!!!
HELP!!!!!!!!!!!!!!!!!
HDF members, I have an '07 bob (w/1,800 miles)that vibrates/chatters when coming to a stop. The bike had the vibration/chatter a couple of times when I first got it but I thought it was justthe road. I put a PC III and a stage 1 intake on it the other night and got on it hard (accel). I took a 200 mile trip this week end and just about every time I came to a stop and pulled in the clutch the bike started to vibrate/chatter then it went away before I got fully stopped. I also can rev the motor and as the motor revs down it will vibrate/chatter just before it goes back to idle. I know harleys vibrate and I am not concered about the normal vibs but this is a bad vib/chatter. I have read on the forums about broken motor mounts can someone explain in detial what I need to look for. I did a visual check and tightened the front and rear mounts but it didnt seem to help. Any input would be gratefull. I am about to pull my hair out on this one.
HDF members, I have an '07 bob (w/1,800 miles)that vibrates/chatters when coming to a stop. The bike had the vibration/chatter a couple of times when I first got it but I thought it was justthe road. I put a PC III and a stage 1 intake on it the other night and got on it hard (accel). I took a 200 mile trip this week end and just about every time I came to a stop and pulled in the clutch the bike started to vibrate/chatter then it went away before I got fully stopped. I also can rev the motor and as the motor revs down it will vibrate/chatter just before it goes back to idle. I know harleys vibrate and I am not concered about the normal vibs but this is a bad vib/chatter. I have read on the forums about broken motor mounts can someone explain in detial what I need to look for. I did a visual check and tightened the front and rear mounts but it didnt seem to help. Any input would be gratefull. I am about to pull my hair out on this one.
Road Master
Joined: Jul 2006
Posts: 754
Likes: 2
From: New Bern, NC
RE: Vibration.........HELP!!!!!!!!!!!!!!
You're going to need to isolate this vibration in order to better describe the problem. Is the problem only suring decel? Does it always occur at the same time. Does pulling in the clutch make the vibration go away? Will you be able to explain it to the dealer so the mechanic can check it out? Keep us informed of what you find.
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Joined: May 2007
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From: Brandon Mississippi
RE: Vibration.........HELP!!!!!!!!!!!!!!
Basically when I am coming to a stop and pull the clutch inthe bike will have a BAD vibration/chatter and when I just about stop it will go away. I can sit on the bike without it moving, rev the motor and as I let off the gas the bike vibrates/chatters just before it goes back to idle. When I am riding it down the road I feel no abnormal vibs. Having no tach I dont know what rpm it occurs @ but its not real high. I think the vib has something to do with a certain rpm.......................
Tourer
Joined: Jul 2006
Posts: 352
Likes: 0
From: Washington
RE: Vibration.........HELP!!!!!!!!!!!!!!
First, I'm not trying to be an A$$. But, I read alot of posts of vibrations with Dynas on this forum and mostly I think, well Dynas vibrate like crap so get used to it. My bike has a different vibration on a weekly basis and I tend to think of it as her personality. Now, I'm not an engineer or mechanic so I don't have a solution for you. Your problem sounds like a basic resonance issue - the rpm at which your bike vibrates at it's worse is it resonance frequence (see http://en.wikipedia.org/wiki/Resonance for a weak primer. My bike vibrates worse in the lower-mid range of her powerband and gets better the higher I go. Thus, I like to wind it out a bit more than average. My only advice and it's of no help to you....get used to it...it will always vibrate like crap. Learn to love it.
Road Captain
Joined: Sep 2006
Posts: 725
Likes: 1
From: southeast Indiana
RE: Vibration.........HELP!!!!!!!!!!!!!!
Have someone stand next to your bike as you rev it to try and identify the source of vibration. It doesn't sound too serious as it runs fine at speed. Look for wear/rub points, loose air cleaner covers, horn mounts, exhaust mounts, etc. Fear not, you'll get it done!
Outstanding HDF Member
Joined: Jun 2006
Posts: 3,432
Likes: 0
From: SW Ohio
RE: Vibration.........HELP!!!!!!!!!!!!!!
plus check motor mounts. the back ones are sorta hard to get to. front ones a piece of cake.
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Road Warrior
Joined: Jul 2007
Posts: 1,634
Likes: 74
From: The 12th Rebel State
RE: Vibration.........HELP!!!!!!!!!!!!!!
Punty you wanna handel this one?? LOL
No seriously it sounds as if something is loose somewhere.. ironoxide is correct... and from what you are saying, it is happening in the same fashion and under the same conditions.. I'd bet its something thats loose somewhere, or something working itself loose...
No seriously it sounds as if something is loose somewhere.. ironoxide is correct... and from what you are saying, it is happening in the same fashion and under the same conditions.. I'd bet its something thats loose somewhere, or something working itself loose...
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Tourer
Joined: May 2007
Posts: 327
Likes: 0
RE: Vibration.........HELP!!!!!!!!!!!!!!
Dude, what happens with your engine when its idleing, boing boing bounce bounce.
When you pull in the clutch, your basically leting it bounce and jump around while your still rolling, so it all transfers to the rider. Try to down shift and let out the clutch when you come to a stop, and dont just pull the clutch and hold it. I dont know if that makes sense but ..........
When you pull in the clutch, your basically leting it bounce and jump around while your still rolling, so it all transfers to the rider. Try to down shift and let out the clutch when you come to a stop, and dont just pull the clutch and hold it. I dont know if that makes sense but ..........
Outstanding HDF Member
Joined: Jun 2006
Posts: 3,432
Likes: 0
From: SW Ohio
RE: Vibration.........HELP!!!!!!!!!!!!!!
yeppers.know that part.mine just started around 5000 miles. never did this before. dealers says they all start this at 5 or 6000 miles,i say bullsh!t to that answer.
i have sad news. dealers not often tell facts. i know,this is a shocker . it does not bother me much,other than the fact that it never did this before. i'm not bitchin.just tellingothers mine does this too. dummies at 2 dealers would not even ride it to see what i am talkin. [sm=signs006.gif]they said. fugem' .