KZ440 Airbox Cap measurements please 11012-1086

  • kawi_lifer
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KZ440 Airbox Cap measurements please 11012-1086

05 Feb 2021 09:15
#843023
As all KZ440 LTD owners know, these parts are hard to find. I have the lower air box and the filter element. Just need to fabricate the Cap Box. Can an owner that has the stock setup please reply to this post with the inside diameter of the intake ports on this box and the length of the box itself (not including the top overlapping mounting tab)?

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  • Nebr_Rex
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Re: KZ440 Airbox Cap measurements please 11012-1086

06 Feb 2021 06:51
#843060
Pics?


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2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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Re: KZ440 Airbox Cap measurements please 11012-1086

06 Feb 2021 08:41
#843068
Hmm. Thought I uploaded a couple. Let me try again. This is the original part that I am trying to replicate. So need dimensions and inside diameter of the intake holes please.

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Re: KZ440 Airbox Cap measurements please 11012-1086

09 Feb 2021 12:53
#843232
Nobody has one of these that can be measured?

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  • martin_csr
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Re: KZ440 Airbox Cap measurements please 11012-1086

10 Feb 2021 07:21 - 11 Feb 2021 07:16
#843265
This is all I could find. kzrider.com/forum/3-carburetor/592653-so...-measurements-needed

From the topic: " The inside diameter is 1 in. The depth of the holes are just over 2 in. Here are some pics ....
1981 KZ650 Competition Sports and Road
Last edit: 11 Feb 2021 07:16 by martin_csr.

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Re: KZ440 Airbox Cap measurements please 11012-1086

10 Feb 2021 14:44
#843288
Perfect. Exactly what I needed. Thank you martin_csr! Looks like I need to improve my forum search skills a bit too.....

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Re: KZ440 Airbox Cap measurements please 11012-1086

11 Feb 2021 07:21 - 11 Feb 2021 07:46
#843316
No eBay APP ID and/or Cert ID defined in Kunena configurationI could have sworn somebody in the past year had more comprehensive measurements, but I couldn't find them. I may have been mistaken because I didn't see anything in my notes. I try to save stuff like this.

Here's something I've never seen before: an actual 440 airbox cap for sale on EB. and it's NOS. but expensive.
1981 KZ650 Competition Sports and Road
Last edit: 11 Feb 2021 07:46 by martin_csr.

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Re: KZ440 Airbox Cap measurements please 11012-1086

12 Feb 2021 08:43
#843379
Yea, saw that one too. Thanks for searching for one for me. Just not excited to pay that much for one. That is more than I paid for the whole bike. I figure the key is to get the right pressure and flow. If I use a stock foam filter element, use the same amount of restriction (2x 1 inch tunnels) and a box with the same volume, I should get the same result as this $250 piece of plastic.

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Re: KZ440 Airbox Cap measurements please 11012-1086

12 Feb 2021 19:12 - 13 Feb 2021 14:21
#843400
If I can get out to the garage, I'll pull mine and measure it out.

Ok, the tubes
52.86mm total tube depth
61.27mm center to center tube spacing
37.81mm inlet outer diameter tapers down to 26.85mm within 5.12mm of depth

81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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Last edit: 13 Feb 2021 14:21 by F64.

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Re: KZ440 Airbox Cap measurements please 11012-1086

14 Feb 2021 08:46 - 14 Feb 2021 08:51
#843464
I edited my last post with the measurements. One of these days I'll get it 3D scanned and we can just print this thing out.
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
Last edit: 14 Feb 2021 08:51 by F64.
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Re: KZ440 Airbox Cap measurements please 11012-1086

15 Feb 2021 10:14
#843516
Hey F64! Great info and really appreciate you taking the time to measure the box. This will REALLY help. 3D printer is an excellent idea - if I had one. I will just have to resort building it the old fashioned way.

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