KZR Valve Shim Exchange

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11 Mar 2015 09:24 #664080 by Tyler
KZR Valve Shim Exchange was created by Tyler
Over the years this topic seems to come up from time to time. We need a dedicated thread to valve shims, for members to buy, sell and swap valve shims. Under bucket, 29mm, and the rare and elusive 32mm shims for the KZ twins. I have quite a few under bucket shims and some 29mm, and I am going to need some 29mm ones soon. I will put up I list of what I have. If anyone else is looking for shims post it here...

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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  • DoctoRot
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  • Oh, the usual... I bowl, I drive around...
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11 Mar 2015 11:32 #664087 by DoctoRot
Replied by DoctoRot on topic KZR Valve Shim Exchange
this is a great idea. i'm on board. I will be shimming my 1000 soon.

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11 Mar 2015 13:21 #664108 by Yorkie
Replied by Yorkie on topic KZR Valve Shim Exchange
Great Idea. Count me in.

'72 Z1

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11 Mar 2015 13:47 #664111 by etbike3135
Replied by etbike3135 on topic KZR Valve Shim Exchange
I have tons of 275, 280 and 290's. Looking for 250, 255's.

1973 Kawasaki Z1
18 years in dragbikes

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  • Nessism
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11 Mar 2015 14:22 #664112 by Nessism
Replied by Nessism on topic KZR Valve Shim Exchange

etbike3135 wrote: I have tons of 275, 280 and 290's. Looking for 250, 255's.


Since the valves tighten with mileage, the fat shims accumulate and the thin ones are in constant demand. :side:

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11 Mar 2015 14:24 #664113 by Tyler
Replied by Tyler on topic KZR Valve Shim Exchange
I think the best way is for people to list what they have on hand in one post and then just keep editing it as inventory changes. That would keep this thread smaller and easier to see who has what. Just send a PM if you want to swap or buy form someone. Padded envelopes are only a buck or two and postage is cheap compared to buying new ones, especially if you need a lot of them.

Here is what I have

Under Bucket
( I have quite a few will update later)

29mm
(Will update soon)

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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11 Mar 2015 14:26 #664114 by Tyler
Replied by Tyler on topic KZR Valve Shim Exchange

Nessism wrote:

etbike3135 wrote: I have tons of 275, 280 and 290's. Looking for 250, 255's.


Since the valves tighten with mileage, the fat shims accumulate and the thin ones are in constant demand. :side:


There are cases when valve stems get tipped after a valve job and you need the fat ones too..

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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12 Mar 2015 14:32 - 18 Mar 2015 14:13 #664223 by etbike3135
Replied by etbike3135 on topic KZR Valve Shim Exchange
Ill offer a 2 for 1 trade on 29mm shim over bucket (stock kz900/1000) to anyone who has the following shims that I need, Trades need to be for 4 or more shims that I receive, so you would be getting 8. Sorry, I'm not doing 1's and 2's
215
255
295
310

My inventory to trade with as of 3/12/15 is 139 individual shims,

260 x 7
265 x 34
270 x 48
275 x 20
280 x 20
285 x 10

1973 Kawasaki Z1
18 years in dragbikes
Last edit: 18 Mar 2015 14:13 by etbike3135.

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  • SWest
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12 Mar 2015 19:14 #664266 by SWest
Replied by SWest on topic KZR Valve Shim Exchange
I'm still re accumulating shims. Mine were lost to, well just say lost. I'm buying mine from jetsrus for around $10 a piece. When I tip my valves, I will have the smaller sizes available. This is a good idea. Organize in profile? I'll be watching.
Steve

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12 Mar 2015 21:48 #664279 by bountyhunter
Replied by bountyhunter on topic KZR Valve Shim Exchange
Z1 used to have some of the rare 32mm shims (used) and you could find some new ones on ebay for about $20 apiece in a few sizes.

1979 KZ-750 Twin

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12 Mar 2015 21:50 #664280 by bountyhunter
Replied by bountyhunter on topic KZR Valve Shim Exchange

Tyler wrote:

Nessism wrote:

etbike3135 wrote: I have tons of 275, 280 and 290's. Looking for 250, 255's.


Since the valves tighten with mileage, the fat shims accumulate and the thin ones are in constant demand. :side:


There are cases when valve stems get tipped after a valve job and you need the fat ones too..

The problem is that in the old heads, they have been cut in so far that they can't tip the valve ends far enough to get them to work with a standard shim so they need the thin ones.

1979 KZ-750 Twin

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  • SWest
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13 Mar 2015 05:45 #664298 by SWest
Replied by SWest on topic KZR Valve Shim Exchange
That's why I chose to lap in my new valves. I had a three angle valve grind done before I parked it on the early 90's. It had less than 10,000 miles on it then. I was using 240/230's then. That's what I have on the intakes now but I'm down to 225/210 on the exhaust now. Time to tip them but it will only buy a little more time. I'll buy a complete head when I can find/afford one. I WON'T buy a bare one.
Steve

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