Missing Swing Arm Parts- Time to Upgrade.

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25 Jan 2006 12:47 #19858 by skippr76KZ
Missing Swing Arm Parts- Time to Upgrade. was created by skippr76KZ
Having a hard time trying to figure out what would be needed for a swing arm upgrade on my KZ900LTD. First of all, after having taken this swing arm apartlast year, I'm missing some parts. Missing both sleeves. And both bushings are shot. Also missing the end caps and o-rings. So what's the best course of action? Get a swing arm kit from Z1 or PartsNMore? Excellent Idea! It seems like the kits come with 4 needle bearings. (is that two on each side?) Do I still need to buy the sleeves I am missing? And do I still need to use the original end-caps and o-rings? (the ones that I'm missing? ) If so, I probably should buy them. By the way I did ask Jeff at Z1. He was very helpful by kindly sending me the written instructions - but the instructions were lacking in some areas. Has anyone used one of these kits and can help clear some of my confusion? Thanks!

1976 KZ900LTD Fully Restored
2000 Vulcan FI Classic
1998 Ducati ST2, Gone

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25 Jan 2006 18:17 #19884 by Jeff.Saunders
Replied by Jeff.Saunders on topic Missing Swing Arm Parts- Time to Upgrade.
For the Z1 & KZ900 the kit comprises 4 needle roller bearings, a sleeve/insert, 2 end-caps and two spacer washers.

What's needed from the old setup is the swingarm, the swingarm pivot bolt and the nut. The rest is removed and no longer needed.

The toughest part is driving the old bushings out - they can be a pain in the butt - you need a long drift and some pounding to remove them. Gradually working around the bushing from the inside to evenly push each of them out. Be prepared to sweat...

Once you've removed the bushings, you insert 2 needle roller bearings in place of each one - so two on each side. Then insert the sleeve/insert inside the bearings and push it all the way through all 4 bearings.

Place the 2 end-caps on the swing arm and position it in place to check clearance. The kit comes with 2 spacers - sometimes you need one on each side, sometimes only one. Assuming both are needed, they sit outside the end-caps. With the spacers and end-caps in place, slide the swingarm pivot bolt through the frame and swingarm and all the way through the swingarm, secure with nut. Tighten nut and while tightening it, check the swingarm still pivots freely - stop when you just start to feel the swingarm binding a little.

Reassemble the rest of the rear end and take the bike for a ride.

It's best to recheck the tightness of the nut just as a precaution.

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26 Jan 2006 05:44 #19929 by skippr76KZ
Replied by skippr76KZ on topic Missing Swing Arm Parts- Time to Upgrade.
Thank You Jeff! Great info. This will make my work a little easier knowing these additional details.

1976 KZ900LTD Fully Restored
2000 Vulcan FI Classic
1998 Ducati ST2, Gone

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26 Jan 2006 05:56 #19931 by wiredgeorge
Replied by wiredgeorge on topic Missing Swing Arm Parts- Time to Upgrade.
Skip, I hope this clears up the issues with your swingarm. I have installed a couple of the tapered roller bearing kits. I also think that I heated (with torch) one of the swingarms and sprayed in PB Blaster and let it sit after heating. I then reheated and beat the old bushings out fairly easily with a drift.

I buy long aluminum rods; about 5/8" diameter from home improvement places. I leave them about 2" long and use a BIG HEAVY HAMMER and use the hammer's weight with fairly small taps moving around the permimeter of the bushing (so it doesn't bind) to tap it out.

It is also easier if you have a good bench vise with rubber pads to grip the swingarm securely.

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!

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28 Jan 2006 03:06 #20178 by The Fish
Replied by The Fish on topic Missing Swing Arm Parts- Time to Upgrade.
Jeff.Saunders wrote:


The toughest part is driving the old bushings out - they can be a pain in the butt - you need a long drift and some pounding to remove them. Gradually working around the bushing from the inside to evenly push each of them out. Be prepared to sweat...


Get a socket that fits in through the old bushing. Put it in one end with an old extension. Stuff an old rag in the other end. The rag takes up the difference in the diameters between the socket and the bushing and it is easier to pound out with a hammer.
Fish

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