I had something similar, turned out to be the needle bearings in the swingarm pivot.

I would suspect that used tire you put on there first :dry:
A matching set is the way to go, then balance them.

If you have spoke rims check them for trueness , you can tape a piece of wire to a fork or shock and spin the tire to check for roundness and side ways movement

Tap the spokes to see if you have any dead sounding ones that need to be tightened up.
Please note; before you turn any spoke nuts make sure that you loosen up the rust by applying something like Kroil oil or PB Blaster for at least couple of days before you try and turn one or you risk the chance of snapping a spoke, believe me I know :blush:

Have you done any work to the front end?

If you have stock ball bearings they probably need grease or to be replaced with roller bearings, about 40 bucks through Z1E, "your best bet"
Note; if you decide to just grease them be careful and follow the shop manual instructions , they are loose and will fall out,

If you don't want to take it apart right now you can still tighten the stem nut some but not too tight especially if you don't grease the bearings.

Grease your swing arm, can you feel any sideways play ?

Loosen,adjust and re tighten the front end as per the shop manual's sequence.

Please be careful until you get it figured out.

JD




Sorry, I couldn't figure out how to make the pics bigger

Cool thanks man. Unread skittle but of this thread and saw that aligning all that stuff can be a challenge but it's good for me somebody already did it.

tk11b40 wrote: Rear shocks:

fully extended 13.5" center to center eye to eye.

Yes they are 17 inch wheels, Front from an early 90's GSXR, rear from a 99 ZRX 1100.

Thank you for the compliment, you appear to be from Seattle, I was living in Wenatchee until 2007.

When you are ready just hit me up. I can walk you through the swingarm switch. The 99 ZRX fits right in. Then there is the chain alignment, and the front and rear wheel alignment.

Its all do-able.

tk11b40 wrote: This is a great idea, except for the copywrite problem.

The points cover, would be easy to make, 1 lathe Op, 1 mill op. I just need a different Logo.

I will look into this, the part is possible.

y

The KZR logo would me a bitch'n points cover. I have also considered cutting out the center and putting plexiglass in the center with some LED back lighting.

Yeah, I'm in Seattle. Thanks for the info. I'm thinking of putting a ZRX swing arm on my kz900 but can't afford to do the whole thing right now so I'm gathering info and looking for parts. I haven't found anybody local that's done this yet. Pretty clean upgrade that shares the lineage of the Z bikes.

Rear shocks:

fully extended 13.5" center to center eye to eye.

Yes they are 17 inch wheels, Front from an early 90's GSXR, rear from a 99 ZRX 1100.

Thank you for the compliment, you appear to be from Seattle, I was living in Wenatchee until 2007.

So I'm STILL messing with the paint... Found some more small imperfections. I really just need to leave things alone... lol.

I will clear it tomorrow hopefully. I really need to move forward on this bike and it all starts with a rolling chassis.

I needed to close the gap in the swing arm pivot. It's about 1 mm off so I made some hi-tech custom spacers, it was slightly dangerous! Ghetto fab! Zed eat your heart out.. :silly: :whistle: :woohoo:

Also lightly polished the rear axle pin and bolt. And got my custom boots made to my foot specs!

I had the engine in when I first attached the swingarm. I took it out to weld the shock mounts. I'm not that good at welding upside down, or things I can't see very well.

Alan

Great looking bike you have there...

Couple questions

what's length on the rear shocks?
are those 17" wheels?