after tipping valves, much needed valve shim sizing help
- Gdailey2112
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- 82 KZ1100D1
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after tipping valves, much needed valve shim sizing help
07 Apr 2023 21:48
currently on #2 ex there is a 2.20mm shim and clearance shows a whopping .55mm
so what shim would i need for achieving a clearance of .20mm
#4 in have .30mm clearance and a 2.40 shim
I believe I'm looking for clearance to be about @ .15mm to .20mm
#3 ex has clearance of .35mm with a 2.40 shim
looking to achieve about .20mm to .25mm clearance
any help is certainly appreciated
thanks
so what shim would i need for achieving a clearance of .20mm
#4 in have .30mm clearance and a 2.40 shim
I believe I'm looking for clearance to be about @ .15mm to .20mm
#3 ex has clearance of .35mm with a 2.40 shim
looking to achieve about .20mm to .25mm clearance
any help is certainly appreciated
thanks
1982 KZ1100D1
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- SWest
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Re: after tipping valves, much needed valve shim sizing help
07 Apr 2023 22:01
Add 2.20 plus .55 gives you 2.75 - .15 = 2.60. and so on.
Steve
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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- zed1015
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Re: after tipping valves, much needed valve shim sizing help
08 Apr 2023 01:49 - 08 Apr 2023 03:58
If this is for a KZ900/1000 you need 0.15mm valve clearance for stock cams ( up to 0.17mm max ).
0.18mm for Unitrack cams..
Then a max of 0.20mm for race cams.
0.25mm is miles to wide.
To calculate your shim size just add the current clearance to the shim size and deduct 0.15mm.
So for #2 add 0.55 mm clearance to the 2.20mm shim = 2.75mm and deduct the 0.15mm clearance required and you get 2.60 shim needed.
255 shim for #4
260 shim for #3
0.18mm for Unitrack cams..
Then a max of 0.20mm for race cams.
0.25mm is miles to wide.
To calculate your shim size just add the current clearance to the shim size and deduct 0.15mm.
So for #2 add 0.55 mm clearance to the 2.20mm shim = 2.75mm and deduct the 0.15mm clearance required and you get 2.60 shim needed.
255 shim for #4
260 shim for #3
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0
Last edit: 08 Apr 2023 03:58 by zed1015.
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- SWest
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Re: after tipping valves, much needed valve shim sizing help
08 Apr 2023 18:32
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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- Gdailey2112
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Re: after tipping valves, much needed valve shim sizing help
08 Apr 2023 19:48
i wanna thank you guys
that info really helped
but not just for now, no no
...that was a tid bit of very handy & useful information that will last me for a lifetime
I really do appreciate all the much needed help
thank you, thank you, thank you
that info really helped
but not just for now, no no
...that was a tid bit of very handy & useful information that will last me for a lifetime
I really do appreciate all the much needed help
thank you, thank you, thank you
1982 KZ1100D1
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- sf4t7
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Re: after tipping valves, much needed valve shim sizing help
12 Apr 2023 16:08
Thanks from me also, I'm in the process of calculating shim sizes for my 1974 Z1A. I'm "reviving" -- it's been asleep for the last 22 years, now I'm retired and needed a project
2nd owner, I've owned it since 1977
Work done in 1981:
1015 bore kit
Andrews 1X cams
welded crankshaft
Scotty
2nd owner, I've owned it since 1977
Work done in 1981:
1015 bore kit
Andrews 1X cams
welded crankshaft
Scotty
Scotty
1974 Z1A
Yoshimura 987 kit
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
1974 Z1A
Yoshimura 987 kit
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
The following user(s) said Thank You: SWest
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