Bullet Posted August 25, 2003 Share Posted August 25, 2003 Has anyone expericenced steering head shake on the bird?? 65 mph on I90 set the throttle lock, went for a small strech leaving the bars unattended for 5 sec and :shock: WTF :shock: . Bitch started shaking like 100 hooker from canada. Neck bearings?? Any logical deductions?(other than the obvious, letting go of the bars.) Quote Link to comment Share on other sites More sharing options...
Bullet Posted August 25, 2003 Author Share Posted August 25, 2003 #1 Back pack worn by me, none other attached. #2 1/2 worn Pilot Sport #3 Wide open road. The thing that bugs me is at 30-40mph no prob. why only @ 65? Quote Link to comment Share on other sites More sharing options...
K-TOOL Posted August 25, 2003 Share Posted August 25, 2003 Got the same thing only at 45mph. Eventually I'm gonna try the tapered bearings. As for now I just dont let go anywhere near 45. Quote Link to comment Share on other sites More sharing options...
XX Posted August 25, 2003 Share Posted August 25, 2003 In addition to what Joe listed, I've found the same, but consider these: 1) road condition: asphalt or concrete, rain grooved or smooth etc etc 2) front tire condition: cupping maybe? 3) deceleration? throttle on? or cruise? 4) front tire model I had a terrible time with a bt020 front, and as my bt057 grows older, am having the same wobble. But mainly on rain grooved white concrete at speeds between 10-50mph, and empasized upon deceleration and de-emphasized on acceleration. If you are up to it, check your steering head adjustment, could hurt to check before spending other monies :grin: Thursday I'm having a dealer (yes, unfortunately a dealer, hopefully it will go well) install tapered bearings from http://www.cbrbearing.com/ will let the list know the difference. Quote Link to comment Share on other sites More sharing options...
DaveK Posted August 25, 2003 Share Posted August 25, 2003 Packpack would do it for sure. Mine does it when I have something attached to the seat. ALSO....Front and rear tire balancing. Mine would wobble over 100..then my dealer charged me 30 bucks to balance the tire he never balanced when I paid him 90 to install the tires. FUCKER ! Could be anything...don't assume it is the head bearings. Dave Quote Link to comment Share on other sites More sharing options...
N1K Posted August 25, 2003 Share Posted August 25, 2003 I have a wobble from 40 mph to 50 mhp.... I think its the avons... They are sending me another under warranty. Quote Link to comment Share on other sites More sharing options...
SwampNut Posted August 25, 2003 Share Posted August 25, 2003 This happens. It's a well known phenomenon at that speed. I get it on and off when the tire wear, loading, head angle, and moon's orbit happen to align. Then it goes away by changing any one of those. I've never considered it something to worry about. Quote Link to comment Share on other sites More sharing options...
Bullet Posted August 26, 2003 Author Share Posted August 26, 2003 I would be curious to know if a brand new bird showed this. Or is it just because we all have so many miles on em? :-o Quote Link to comment Share on other sites More sharing options...
Obby Posted August 26, 2003 Share Posted August 26, 2003 I had it really bad with my old BT057's. With a new set of balance tires, I get the shake at speeds of 100mph+ under hard acceleration only. Can't seem to get rid of it completely. Quote Link to comment Share on other sites More sharing options...
jrdxx Posted August 26, 2003 Share Posted August 26, 2003 Check your tire pressures, put your hands back on the bars, and keep on riding. Quote Link to comment Share on other sites More sharing options...
rca29 Posted August 26, 2003 Share Posted August 26, 2003 I would be curious to know if a brand new bird showed this. Or is it just because we all have so many miles on em? You don't need a new bird. Mine is four years old, 15.400 miles, 3750 miles on Metzeler MZ4 tyres and i don't have any of that a) I would try to balance the tyres first... It seems a lot like an unbalanced wheel (as it only happens at a certain speed). My second bet would be a brand new set of tyres... Quote Link to comment Share on other sites More sharing options...
PGA XX Posted August 27, 2003 Share Posted August 27, 2003 I experienced it w/ the shit stock tires (Macadam 90), and shit stock forks. Fork job seemed to solve it (Race Tech). I've gone through two fronts (bt 010) and not shake since. Lance Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted August 27, 2003 Share Posted August 27, 2003 I have a wobble from 40 mph to 50 mhp.... Â I think its the avons... They are sending me another under warranty. You can say what you want about the Dunlops but their quality is second to none. They balance almost perfect every time. Quote Link to comment Share on other sites More sharing options...
rickrad Posted August 27, 2003 Share Posted August 27, 2003 Tires. They are good quality but they wear strange on the front. Put a new front tire on and I bet the problem goes away. Is the aggrivation worth a $100 bill and some change? It is to me. Quote Link to comment Share on other sites More sharing options...
mbdean Posted August 27, 2003 Share Posted August 27, 2003 With a relatively new and properly inflated front tire I can ride for literally miles with my hands off the bars and no hint of any shake. But if the tire is worn or not inflated to the correct pressure the the front shakes like a pubescent belly dancer. Quote Link to comment Share on other sites More sharing options...
G2 Posted August 27, 2003 Share Posted August 27, 2003 Rear tire alignment :-o Quote Link to comment Share on other sites More sharing options...
mbdean Posted August 27, 2003 Share Posted August 27, 2003 Fraid I'll have to take "the fifth" on that one.............. Unless you're Muslim Quote Link to comment Share on other sites More sharing options...
XX Posted August 27, 2003 Share Posted August 27, 2003 would need for alignment cause the handlebars to be turned 1-2 degrees one direction or the other? if thre is need for alignment, are we talking about aligning the rear sprocket in the chain? or something else? Quote Link to comment Share on other sites More sharing options...
mbdean Posted August 27, 2003 Share Posted August 27, 2003 Question #1: Yes Question #2: Yes I use a yard stick against the tire to visually confim that the tire is parallel to the chain. Quote Link to comment Share on other sites More sharing options...
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