HotRod
Well-Known Member
X2 No wobble on 06 k9
Steering Wobble High Speed
- Thread starter scgorazd
- Start date
X2 No wobble on 06 k9
Black Rider
Active Member
Kaptin,
no problems here. However I do not have the beads... something I may look at doing this winter. after I get this oil issue ironed out with the heads.
I noticed when adjusting the fall away that it always broke away quicker when turning the steering wheel to the left. For example, if the handlebars broke away at 3 inches to the left it would take 5.5 to 6 inches to the right to break away.
Is the difference between left and right break away due to caliper weight, or is that indicative of a problem with the neck bearings? I disconnected the clutch cable before testing the fall away.
I am currently using dyna beads.
When I adjusted the fall away, I had it closer to 2", I had read on here somewhere that for longer bikes closer to 2" is better. Should I kick it out to 3" when turning it to the left before it falls away (that would be about 5-6 inches from center for fall away when turning to the right)?
Is the difference between left and right break away due to caliper weight, or is that indicative of a problem with the neck bearings? I disconnected the clutch cable before testing the fall away.
I am currently using dyna beads.
When I adjusted the fall away, I had it closer to 2", I had read on here somewhere that for longer bikes closer to 2" is better. Should I kick it out to 3" when turning it to the left before it falls away (that would be about 5-6 inches from center for fall away when turning to the right)?
ground pounder
Active Member
:flag:Steve, Had the same problem with my 2009 EFI k-9 when it was new. The mechanic and i checked everything you and your mechanic did. One day when I was cruzing down the e-way it got to wobbling and pogoing so bad i almost became road pizza! Went back to my mechanic and told him about it and he said he didn't why it would do that. I demanded to change the fork oil and low and behold it only had about 2 to 4 ounces of oil per fork from the factory. We filled it with the right amount in each fork and I added a old school tweak bar and now i cruze at whatever speed i want with no problems. Hope this helps. good luck! Usr 20wt or 30wt fork oil . I think its 10 ounces per side.
:2thumbs:
:2thumbs:
Jwooky
Well-Known Member
We had the same issue on my GF's bike. After much, turned out to be a separated belt in the REAR tire. It looked like new. If it were not for the fact it started to leak, we would have taken a lot longer to figure that out.
Try having both tires balanced and see what happens.
Try having both tires balanced and see what happens.
Knuckles
Active Member
Assuming your lift is on level ground, fall away should be the same both ways. Clutch or brake cable could be causing your difference. Remove both and adjust to 1-2 inches.
Here is my take. Take the tires off and throw them away. Find a matching profile front and rear. Balance either with machine or static. Use lead weights. Beads might out-weigh the lead needed, so light and unsprung weight (wheels are not on springs so they are unsprung) and moving that weight at the bars is more for feel.
Tip over is more you have zero bearing move at the pivot. All you have to do is lock the front brake, set hand at 12 o'clock on the front wheel and push the bike back and forth at the bars. You feel a click, she is loose. Tip over means, if you don't have the feel for it, load the bearings this way.
Wobble: You want the least [bearing to race] resistance so the drag [tank slapping] can recover quicker to center.
You want new tires, meaning, squids only see a decent profile on the front, but miss the subtle 'stepping.' As if the rear wheel wears and the front does not? Didn't they both roll out the dealer door all rotating at the same time? Like rub both hands together. Which palm stayed cold as if no wear is happening to the front tire?
The posts here have concluded, 'my bike does not wobble and I can reach 130,' whereas 150 is a reach; without being heavy to warmed over, meaning. Bottom line, you don't rebalance a stepped tire. You want to go fast, freshen the rubber both front and rear at the same time, or continue to keep squidding along under a ton. :up:
Tip over is more you have zero bearing move at the pivot. All you have to do is lock the front brake, set hand at 12 o'clock on the front wheel and push the bike back and forth at the bars. You feel a click, she is loose. Tip over means, if you don't have the feel for it, load the bearings this way.
Wobble: You want the least [bearing to race] resistance so the drag [tank slapping] can recover quicker to center.
You want new tires, meaning, squids only see a decent profile on the front, but miss the subtle 'stepping.' As if the rear wheel wears and the front does not? Didn't they both roll out the dealer door all rotating at the same time? Like rub both hands together. Which palm stayed cold as if no wear is happening to the front tire?
The posts here have concluded, 'my bike does not wobble and I can reach 130,' whereas 150 is a reach; without being heavy to warmed over, meaning. Bottom line, you don't rebalance a stepped tire. You want to go fast, freshen the rubber both front and rear at the same time, or continue to keep squidding along under a ton. :up:
StreetHog
Active Member
What is the point??? Who in their right mind would 150mph a chopper?? Sounds to me like you need to go buy a crotch rocket for your rush and charish your chopper for cruis'n instead of trying to viberate it to death. Been there done that in my "nothing can kill me" dayz and looking back, I was an idiot.......Hey guys, Steve from So. Ill here (close to STL).
I have a 2009 K-9.
I bought the bike used in April of 2012, and since that time the highest speed I could go was between 90 & 100 MPH.
The bike would begin to wobble to the point where I would not accelerate anymore and begin to back it off until the wobbling subsided. I went to Gateway Big Dog in STL to talk with the guys at the shop.
They said the K9 should easily do 140-150 with little to no wobble. A couple of things they told me to check were: 1. Air Pressure, 2. See if the tire was cupped, 3. Fall away.
The air pressure was at spec and the tire has about 1000 miles on it (no damage). I proceeded to check the fall away and it seemed to be out of range a little bit, about 3" as opposed to the recommended 1-2". I adjusted the fall away according to the service manual directions and put her back together.
Took it out for another spin and this time I could get up to around 110 MPH before she started to give me the shakes. It seemed to improve a little bit, but still not the 150 i'm shooting for.
Any thoughts/suggestions?
First person to help gets a beer!
Any help is appreciated.
Thanks
Thanks to everyone for their suggestions. I appreciate you lending your expertise. I didn't buy the chopper for high speed, I bought it cause its a beautiful machine and there is simply nothing else like it. Every now and then though when i'm on the road I would like to goose the throttle and get her going. I concur if I did desire high speed then I probably would have gotten a hayabusa, but the way the chopper is laid out, American made...just too many attributes to list.
Thanks again and Happy Thanksgiving!
Thanks again and Happy Thanksgiving!