High speed questions.

[shinyribs]

Re-run wrote

As for the shake, you have a number of causes. Your tire could be cupped or otherwise damaged, even if you can see it. If it is out of round a bit or out of balance, you can have issues.
Your rim could be out of round, you need a dial gauge to check this but it would be a good idea, especially if you have spokes.
head bearings could be bad even if they do not feel like it. A quick test would be to sit the bike on the center stand and put weight on the back to raise the front tire. Slowly rotate the bars back and forth and feel for any notching. You should also be able to set the bars just off of center on either side and they should turn that direction on their own with very little pressure. If not, new tapered bearings are in order.

Some new fork oil might be in order too. If the levels are of from each other, dampening can be affected.

And finally, the road you were on, did it have rain grooves cut into it or wheel tracks? Your bike might be fine and those damn things can cause wobbles.
A cheap stabilizer is not a bad idea though but check and correct any issues first.

Just got done checking the things you mentioned Rerun

Drained and replaced the fork oil. To the best of my ability the are filled evenly.The oil that was in there only had about 4k miles on it so I dont think it was beat up too bad.Still looked clean.

Steering bearings seem ok. No notching. Bars will fall to the left like you explain,but not to the right. I noticed that the clump of wires i have on the left side of the steering neck are moving when I turn right,so I attribute that to not falling to the right since it feels very smooth.

Front rim has .030" run-out on both side to side and up and down

Rear rim has .025" run-out side to side & .060" up and down.

Is this with in specs? The .060" seems a bit much to me

Tires are still practically brand new. I looked them over good for grooves,cups or chunks missing. Visually I do not see any defects. I ran a couple laps of masking tape around the center of the tread trying to keep it smooth as possible to check the run-out of the tire vs the rim. It was kinda of a hokie test and didnt really produce any results. It did not reveal any major run-out issues at least,but i really couldnt get a good way to run the dial indicator across it.Best I can tell the tire follows the rim fairly well.

I'm hoping my occasional wobble is just road related and a stabilizer will correct since it is intermittent and rare. I've been over 100 mph probably 15-20 times and it has only wobbled 3 or 4 times at most. Once I know was more than likely road related.Tar snake.

That .060" on the rear has me concerned to be honest. Any thoughts?

[Piute]

   That's a lot of checking plan on keeping it at that speed or need another bike LIKE MINe to check all that again please

  Ithink you need a stable-izzzer,ya-no ya gotta have one and that will look way cool ,BUT kinda opens ya up for a challange.

  By the way did you backyard balance or did you have it speed balance,BIGG diff when going 100+

[shinyribs]

The tires where already on the rims and balanced when I got them. At least that were supposed to be. I shpulda had them checked. At 70 the bike is dead smooth without a hint of vibration at all. At 35 MPG I have a funny wumpwumpwump that seems to come from the front.  Wondering if it is the 060 off of my rear now?  

[Piute]

                   have to wait on my tire mount so going to have to just bubble balance it,
                        can't leave bike setting with kids running and climbing everything
                           Lots better safe then sorry when it come to are Lil loved ones  couldn't get this on A "T"  Adobe not working to change

[shinyribs]

I found this steering damper for $25 with free shipping. Looks like the exact same one dimecity sells for $175.LOL not gonna happen. I have found several 35mm mounting brackets right around the $20-25 range,and DCC wants $50 for them.Their prices are overly inflated from what I can tell. Any opinions on this piece?

http://aq.ioffer.com/i/330mm-steering-damper-stabilizer-for-honda-cb125-cb750-508700147

I also found this pic with the damper installed as so. Looks kinda...well...not over-lookable. Do they have to mount front to back? I was wanting to mount it sideways and possibly hide it between the triple trees.Thats how i mounted one on a 4 wheeler I used to have. I guess it all boils down to leverage. What do you guys think for mounting position? For $25 it's kinda hard to go wrong.

[Dw07u]

Eish... I need to check all these things too, gonna replace the tire anyway tho

[shinyribs]

What a PITA!!! That link I just posted.Has anyone ever bought from there? I keep trying to order the damper but its impossible. It keeps telling me my captcha response is incorrect,but it never gives a captcha to respond to. Scam site?  This is pissing me off.

[cdaiscool]

Either scam site or captcha fail. Have you tried calling them?

Another thing you can do is do the listen one. It should read the letters out loud. I've had 'em before where there was 1 letter in the captcha, and the listening thing had 7.

[Re-run]

Here try this one.
http://www.ebay.com/itm/UNIVERSAL-STEERING-DAMPER-BLUE-330mm-overall-length-/251033964936?pt=Motorcycles_Parts_Accessories&hash=item3a72ca5188&vxp=mtr

I just saw them on partsnmore.com, a bit more expensive but I have ordered from them before and had a good experience. This page SHOULD bring it up but if not, go to cb750k and click chassis on the left and it should filter it. A bit more expensive at $35 but shipping isnt TOO bad, 8 something.
http://www.partsnmore.com/parts/honda/cb750k/?filters[category]=chassis&filters[page]=2


OH, have you checked the tension on your spokes? If they are of, it could cause a wobble but tar snake, raid groove, and depressed wheel tracks can all cause crap like this. I HATE rain grooves.

[shinyribs]

Cda, yeah but the thing is there is no captcha box at all. Oh well, ...to eBay!!!

Thanks Re-run.  I believe I'll go that route.  I haven't checked what my
 actual tension is but I did check for loose spokes. No loosies!

Any opinions on mounting?  

[Re-run]

Well I think you should be able to mount it diagonally but it may need to be lower and I am not sure how it would affect the dampening ability. You may also want to mock something up, a simple tube and rod combo to make sure a 330mm unit isnt too long or that it does not stick out weird. Basically test the angles and see what looks/works the best.

[cdaiscool]

Sounds like a scam then. To eBay you are destined!

[bosco39]

I didn't read through all 4 pages (so might have been mentioned already), but another option to minimize wobble is a fork brace. Not sure how sturdy the CB's forks are, but after I put one on my XS11, wobble all but disappeared. Not sure on options for the CB, though. Place I got mine only does them for the 11. Just a thought.

[Re-run]

These bikes do not have the best braces and some do not think they are needed and maybe under easy riding they are not. But I would never go with out my brace. It is built into the fender and 1 way to stiffen it just a bit is to remove and rubber bits from it.

[shinyribs]

Bosco,it was not mentioned in this thread but my bike does have an additional fork brace.Thank you for the suggestion all the same.

Re-run- all the rubber bits have been removed

After the checks y'all told me to do the bike seems to be ok. The wobbles weren't extremely severe or prolonged. More than likely it was a road surface that caused it. Hopefully a steering damper will be the cure.

[shinyribs]

Re-Run,I checked that second link. Seems as if there has been quite a price increaseToo rich for my blood,but thank you just the same.

[cdaiscool]

Hmm. Will one from another application work?

http://www.ebay.com/itm/94-Suzuki-GSXR750w-Steering-Dampener-/180856948995?pt=Motorcycles_Parts_Accessories&hash=item2a1bea0903&vxp=mtr#ht_2632wt_1246

[cdaiscool]

Or here's another one...

http://www.ebay.com/itm/Hayabusa-Busa-GSXR1300-Steering-Dampener-Stabilizer-U-/130638277264?pt=Motorcycles_Parts_Accessories&hash=item1e6aa5ea90&vxp=mtr

[shinyribs]

I'm always up for some rigging,so yes,anything will work.I've been eyeballing the one off my truck actually

[cdaiscool]

Keep the one on the truck, spring the $20 + shipping for one of those, and show us the results. It's the Cafe way!