So I shouldn't worry by putting an '04 GSXR rear swingarm/wheel and using it as a commuter bike should I? Now you guys have me paranoid about bearing failure LOL

LeePalmer79 wrote:

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this is my starting point picked it up fot $400.. i have the 01-03 GSXR swing arm and shock ready to go in and am looking for the best way to do the upper shock mount..

once you figure it out, post up some good pics & a thread on it. this was what i was thinking for mine as well but without being able to see my bike in person right now, i kinda stumped on how to fab up the shock mount.

this is my starting point picked it up fot $400.. i have the 01-03 GSXR swing arm and shock ready to go in and am looking for the best way to do the upper shock mount..

Hi!
I'm working on similar bike 650 with GSXR front and ZR-6 wheels and swing arm. Wot you thinking to weld for rear shocks? I going to have two and riserching wot would be the best!
www.kzrider.com/forum/11-projects/571936...1-kz-650-ltd-project
Thank you

Hey Duck,

Where you at in CO? I'm in Fort Collins and ride a '76 KZ900 Ltd. From my research the '76 frame was beefed up from the earlier models to help with this. I havent' had this problem, but I replaced all my wheel bearings 2 years ago during the rebuild. Also replaced the swing arm bushings with needle bearings. I had over a 1/4 inch play in the swingarm before I did that. Another culprit might be the neck bearings if they are original.

To be honest, I've been too chicken to go all out since the rebuild. Had it up to 125 on 34 east of Greeley and it was really smooth, but it felt like I was starting to lift off on the rollees so I backed down.

Let me know if you're interested in the kzride to carry the flag across CO. I'm not sure If I'm going to have to ride up to Montana or N. Dakota to get it, but once it starts moving again, I'm hoping to figure it out.

Good Luck!

Link

Thank you very much. Looks like I am moving a few upgrades to the do ASAP list.
I guess I need to find some good rear shocks. Mine don't have that many miles on them but I didn't really like them anyway.

Rear swing arm and brake upgrade is coming very soon. Have everything but a master cylinder and sprocket. Stupid bushings are starting to show signs of wear with not that many miles. Swing arm might be bent too.

I copied this from a post from Jeff Saunders (owner of Z1 enterprises)

Motorcycle Wobble/Vibration Causes

There's a LONG list of potential area that can cause this.

These are not in any particular order

Wheel bearings

Steering bearings - repack grease, check tightness

Swing arm bushings/sleeves/bearings - replace if worn, repack grease

Fork springs aging - check spring length

Unequal fork oil - if seals leak, then your damping can be ineffective

Rear shocks aging, damper leaks - if you have oil leaking from the seals, the damping is toast.

Worn Tires/Mismatched tires/tire pressures/wrong size tires

Wheel alignment - don't trust the chain adjusters - I visually align the wheels.

Bent rims/broken spokes - get the wheels off the ground and spin them - check for run out / damage

Balance the wheels- makes a big difference.

Check for wheel run out(out of round).

Tire not fully beaded(seated on the rim).

Low air pressure in either tire.

Front disc warped - check for run out(out of round)

Dragging brake pads

Steering & swing arm bearings are very common problems, but so are tire issues (pressure/mismatch) and wheel alignment.

Here's where I would check:

1. Tires - they can look perfect and still cause a high speed wobble, also make sure tires are balanced and pressure is set according to Kawasaki spec. If tires are worn replace them. If no other action in this list eliminates wobble replace the tires even if they look ok (guess how I know!) Make sure wheels are not damaged at all.

2. Shocks - if yours are original throw them in the trash - they are shot; if they have been replaced make sure they are high quality units in good shape or else replace them.

3. Swingarm bushings - if you don't know when they were replaced you should replace them (even a little play in them goes a long way to mess up handling)

4. Steering stem bearings - if yours are original replace them with tapered roller bearings; make sure steering stem torque is in spec

5. Fork oil - if not fresh replace with Bel-Ray 15w FORK oil

6. Make sure drive chain is adjusted correctly and chain/sprockets are not worn out

7. Make sure there brake rotor(s) are not warped and dragging unevenly

Also, I would try resetting the forks to the stock height to see if that eliminates the wobble.

glad the bushings arrived and performed as intended.

it sure looks good.

love the stance.the swingarm looks good to me.

not too long,any longer might be too long tho.

keep us posted sir.

leon

And finally a pic of the swingarm after a nice paint job.

Have got the swingarm installed and the front steering stem bearing replaced, new wheel bearings installed. In the process of rebuild front forks as of now. I am working on getting the last spacers made for the rear wheel and it will be done. I still gotta get a few little things like a masterlink a few o rings and some other little stuff. but overall the build is getting alot closer to being finished.