March 7th, 2009, 11:44 PM | #81 |
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Name: Sam
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Kelly,
As a test today, I took my hands off the clipons at 50 MPH with no wobbles. Of course, I have the factory tires, etc. |
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March 7th, 2009, 11:48 PM | #82 |
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Sam -
Did you let the bike decelerate on its own from 50 mph to 40 mph with your hands off the bars?
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March 8th, 2009, 12:02 AM | #83 |
That's me!
Name: TJ
Location: Ames, IA
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Hahaha. Nice Wayne's World reference That's not a bad idea though on the weighted bar ends. I was thinking about doing the same thing using your cheatin' way of doing it . It's weird that people with the SV650 clip-ons aren't having that problem. Perhaps they are heavier or just naturally absorb vibration better? Who knows.
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March 8th, 2009, 11:45 AM | #84 |
"Is that the Ninjer 1000?
Name: Ken
Location: SoCal SGV
Join Date: Nov 2008 Motorcycle(s): 2008 Quarter Liter Kawi Posts: 275
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Kelly,
I let go of the handlebars (stock) at an indicated 90mph, 80mph, 70mph, 60mph, and 50mph. I let the bike decelerate for 10mph at each speed. At all speeds it's rock- solid on my bike. |
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March 8th, 2009, 12:00 PM | #85 |
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March 8th, 2009, 07:24 PM | #86 | |
Track Junkie
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Location: Dallas
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Quote:
i'm headed to the track again on friday morning and might test it out on my bike a bit. you guys have me curious. not sure my results will be any use to you guys since my suspension and geometry is modified though.
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March 8th, 2009, 07:43 PM | #87 |
Join Date: Nov 2008 Posts: Too much.
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I'm in 6th gear when it is happening, but I don't think the gear has anything to do with it.
Today I went for a ride since putting on my bar weights on the clipons. Same results... wobbling when decelerating from 50-40mph. Damn... this is really starting to piss me off. |
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March 8th, 2009, 07:48 PM | #88 |
Track Junkie
Name: Jon
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just wondering so i can try it... i don't have a dash so i never know my rpm or speed
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March 8th, 2009, 07:49 PM | #89 |
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lol... I forgot.
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March 8th, 2009, 07:54 PM | #90 |
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6th gear, 8000 RPM, and let it go down to 4000 RPM. You'll cross through 45ish mph at some point there.
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March 8th, 2009, 07:58 PM | #91 |
Track Junkie
Name: Jon
Location: Dallas
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wheres redline on these bikes?
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March 8th, 2009, 08:01 PM | #92 |
ninjette.org dude
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13k.
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March 16th, 2009, 11:27 AM | #93 |
FORMER MOTORCYCLE RIDER
Name: Steve
Location: On a Trek SU200 or in my CRX
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While i had the SV650 clips i didn't have the wobble you describe.
And now that i changed to the WoodCrafts i still don't have the wobble. I left the barend weights off and i'm having no issues. Maybe it's a rider weight thing... i'm at 195 lbs. |
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March 16th, 2009, 11:35 AM | #94 |
Join Date: Nov 2008 Posts: Too much.
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I'm about 160-170, so I doubt rider weight has anything to do with it. I'm leaning towards something to do with the front tire/wheel or steering stem. I have yet to check any of these, though I did retorque the front axle nut w/o any changes. Thanks for your input, though. seems like there is no rhyme or reason why some wobble and some don't.
have not had time to work on the bike recently... playing Honda Civic mechanic getting the car ready for sale. |
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March 16th, 2009, 12:03 PM | #95 |
Track Junkie
Name: Jon
Location: Dallas
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i forgot to try it at the track this weekend. i have another track day on sunday though, maybe i'll remember this time.
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March 23rd, 2009, 04:50 PM | #96 |
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Name: jason & char
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i had this problem n it was the tire i got was unbalanced
so check ur tire its self not only the rim lift ur front tire off the ground n spin the tire feel the edge of the tire with ur thumb u will feel some spots r out more then others i hade the same problem 40 to 30 mph n the dealer said this was why i changed the tire n it went away good luck |
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March 23rd, 2009, 04:56 PM | #97 |
Join Date: Nov 2008 Posts: Too much.
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thanks. I've always suspected I might have gotten a bum front tire as this started up after I changed both front and rear tires. I'll try the tests you mention.
mahalo for your feedback |
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March 23rd, 2009, 05:11 PM | #98 |
Track Junkie
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I tried taking my hands off the bars a few times and decelled at the track this weekend and got no hint of wobbles
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March 23rd, 2009, 05:13 PM | #99 |
Join Date: Nov 2008 Posts: Too much.
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thanks.
time to start hunting again. |
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March 23rd, 2009, 05:16 PM | #100 |
ninjette.org sage
Name: Tim
Location: Portland, OR
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No wobbles here on the 09. But like I posted above, I constantly have it on my 06 and found nothing wrong with it and no abnormal tire wear.
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April 17th, 2009, 12:33 PM | #101 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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Have you consider putting in a steerling damper? You can easily fab up a bracket and put in a cheap stock gixxer one or if you like you can go with ohlins if you want the best. It'll solve the prob for sure and prevent any possible tank slapping for safety measures. A few bones def worth dismounting the bike superman-style
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April 17th, 2009, 01:44 PM | #102 |
ninjette.org certified postwhore
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Kelly, I just found this thread. I had this happen on my first GSXR 750R Limited back in 1986. The limited had the dry clutch (which was great) but also had the bigger front forks off the GSXR 1100. I put dymag wheels and track tires on it (not slicks) and it had a scary head shack after that. The suspension had to be tuned to get rid of the problem. Cycle magazine did a whole article about it. I know we changed the rear shock and retuned the front forks but me being a rider not a mechanic I don't remember exactly how it was set up. All I remember is it worked. It was all in the suspension.
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April 18th, 2009, 05:27 PM | #103 |
ninjette.org member
Name: Chris
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I still don’t think the suspension has anything to do with it. The bike was just fine before the install of the clip-on after the install the bars wobble. Installing the clip-on does not mess with the tire balance or alignment so it’s not that. It’s not a defective tire or it would have been noticed with the stock bars. Only way for me to describe what is happening is once you take your hands off the bars it looks like your operating a jack hammer(just the bars move/wobble and it steers straight). Kelly can you confirm this or are you experiencing something different?
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April 18th, 2009, 05:39 PM | #104 |
Join Date: Nov 2008 Posts: Too much.
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Chris,
That's accurate. When decel through 50-40 with hands off the bars, the front end will wiggle wildly if I let it. As soon as I put my hands back on the bars, it stops. To be fair, I did notice a slight oscillation in the bars when coming downhill decel through a corner at approx. 40 mph when leaned over after I did my tire change. I only noticed the wild oscillation with the hands off the bars after the installation of the clipons, so it might have been there prior but after the tire change. |
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April 18th, 2009, 06:00 PM | #105 |
ninjette.org member
Name: Chris
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i still have the stock tires and noticed it after the install. once its nice again ima try to mess around with it.
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April 18th, 2009, 06:17 PM | #106 |
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My bike actually does the wobble thing all the time. Almost every ride in fact. It gets pretty bad too. Sometimes it gets bad enough that it'll wobble even with my hands on the bars. I have noticed recently though that it only happens while I'm engine braking. If I stick myself in neutral (which is probably bad going that fast, but I'm a newb. Please correct that in me if it's wrong) and let it decel from there with my hands off, there's no wobble at all, whereas when I'm in gear during the decel with no hands it will wobble almost every time. I always thought it had something to do with the slight raise in vibration when engine braking. As for fixing it, I have no idea! Sorry. Not a mechanic by any sense of the word.
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April 18th, 2009, 06:54 PM | #107 |
ninjette.org member
Name: Chris
Location: Tobyhanna, PA
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do you have the stock bars or clipons?
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April 18th, 2009, 08:49 PM | #108 |
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Stock bars. Clipons are yet to come. I re-tested after that last post and found that it does wobble a little after 40mph even in neutral, but it wobbles MUCH more obviously and violently when engine braking. Just what I found. Hope it helps.
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1991 Honda CBR600 F2, White/Gray, D&D slip-on exhaust, tail integrator, gel grips, Custom undertail. |
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April 18th, 2009, 11:09 PM | #109 |
dirty old man
Name: Chris
Location: Hazel Green, AL
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Kelly, what is the status on your wobble?
nb
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April 18th, 2009, 11:19 PM | #110 |
Join Date: Nov 2008 Posts: Too much.
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still the same. I haven't done anything after the rear wheel alignment. still mulling it over, but I think the next step is to pull the front wheel back off and check the steering stem for tightness. I have a suspicion I may have gotten bum tire from the get go.
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April 19th, 2009, 09:14 AM | #111 |
ninjette.org certified postwhore
Name: Whodat
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Ever think of getting apehangers? Those clipons are hard on your wrists.
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April 19th, 2009, 10:39 AM | #112 |
ninjette.org certified postwhore
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Kelly, I just bought a GSXR 1000 and as I was going through the gsxr forum I noticed this thread.
front end wobble -------------------------------------------------------------------------------- i have a 03 1000 bought it 3 weeks ago the first 2 times i rode it if i let go of the bars there was no wobble i replaced the upper triple tree rode it yesterday now when i let go of the bars they wobble any ideals? Re: front end wobble -------------------------------------------------------------------------------- I had this on my 05 zx6r and i ended up tightening the steering head up a bit and it solved my problem.. ps- i had no noticeable slop in the bearings when lifted from the frame, although the service manual stated the head shouldnt "return" if you bounce the steering off the stop lightly, and mine did, so i just gave it a few taps with a hammer and snugged it up, perfect after that. Just some information, I'm not sure if it is good or bad.
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April 19th, 2009, 10:49 AM | #113 |
ninjette.org member
Name: Tim
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you could always install an Ohlins stabilizer........ |
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April 19th, 2009, 10:51 AM | #114 |
Join Date: Nov 2008 Posts: Too much.
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Thanks. I know loose steering head adjusters can lead to the wobbles, but that doesn't explain why this all started after I changed the tire. I'll check it out though as that's what I've figured out might be a cause of the wobble.
GSXR 1000, huh??? have fun, my friend! |
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April 19th, 2009, 04:34 PM | #115 |
ninjette.org certified postwhore
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Kelly,
I've been picking up bikes to cheap to pass up. $6000 for a 03 Lowrider (3000 miles) and I only paid $2000 for the 06 GSXR 1000 (8000 miles). I have to add that they were through people I knew. I didn't find them on the classified. Just folks that needed money. I just missed a 69 Bonneville in good shape for $800. I'm more on a Norton guy anyway.
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If everything seems under control; you're just not going fast enough! |
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April 19th, 2009, 04:37 PM | #116 |
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damn... how many bikes in your stable right now?
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April 19th, 2009, 08:09 PM | #117 |
ninjette.org guru
Name: Mikel
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Before you can the front tire, dismount the tire from the rim, then remount it.
Another thing to think about Kelly, how windy is it when you trying to do this? Does your jacket flap and flutter easily? The wind tugging on your jacket will cause you to shift your weight in small amounts. When your hands are on the bars, your hands by reflex counter the shift in weight, but without your hands on the bars, your weight shift transfers to the steering in small amounts. On a bike as light as the 250R, it is easily noticeable. Depending on how pronounced the profile of the tire is, say, more triangular, it gives you a smaller amount of footprint, which will also add to the slight shake. Just something to think about. |
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April 19th, 2009, 08:28 PM | #118 |
Join Date: Nov 2008 Posts: Too much.
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yep, as a last resort, dismounting and remounting is on the bottom of the list to get rid of the wobble.
Aerostich one piece suit, so no fluttering of riderwear. And it will happen in all level of winds from no wind to gusty conditions. It is definitely coming from/being caused by something to do with the bike. |
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April 19th, 2009, 09:24 PM | #119 |
ninjette.org guru
Name: mike
Location: tucson az
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I do not have clip ons but I tried letting my hands free after reading this thread and I hade a little bit of wobble then I added zzr 1200 stock bar ends to the bike and no more wobble but it could have been the road aswell
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April 30th, 2009, 10:00 PM | #120 |
That's me!
Name: TJ
Location: Ames, IA
Join Date: Nov 2008 Motorcycle(s): 2008 Ninja 250r (Tis blue), 2008 CBR600RR Posts: 454
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Supersport bike?
Steering damper = allowing supersport bikes to push the trail envelope. Having a headshake on a bike that ISN'T even close to pushing the trail evelope? Steering damper = a bandaid that doesn't fix the problem, but hides the symptoms. I'm surprised over the months you still haven't knocked this problem out. I think since I've broken my tires in my headshake issues have lessened. I agree with checking the head bearings though. It's an easy enough thing to adjust. |
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