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KZ440 Airbox Cap measurements please 11012-1086

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05 Feb 2021 09:15 #843023 by kawi_lifer
KZ440 Airbox Cap measurements please 11012-1086 was created by kawi_lifer
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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06 Feb 2021 06:51 #843060 by Nebr_Rex
Replied by Nebr_Rex on topic KZ440 Airbox Cap measurements please 11012-1086
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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06 Feb 2021 08:41 #843068 by kawi_lifer
Replied by kawi_lifer on topic KZ440 Airbox Cap measurements please 11012-1086
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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09 Feb 2021 12:53 #843232 by kawi_lifer
Replied by kawi_lifer on topic KZ440 Airbox Cap measurements please 11012-1086
Nobody has one of these that can be measured?

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10 Feb 2021 07:21 - 11 Feb 2021 07:16 #843265 by martin_csr
Replied by martin_csr on topic KZ440 Airbox Cap measurements please 11012-1086
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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10 Feb 2021 14:44 #843288 by kawi_lifer
Replied by kawi_lifer on topic KZ440 Airbox Cap measurements please 11012-1086
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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11 Feb 2021 07:21 - 11 Feb 2021 07:46 #843316 by martin_csr
Replied by martin_csr on topic KZ440 Airbox Cap measurements please 11012-1086
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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12 Feb 2021 08:43 #843379 by kawi_lifer
Replied by kawi_lifer on topic KZ440 Airbox Cap measurements please 11012-1086
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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12 Feb 2021 19:12 - 13 Feb 2021 14:21 #843400 by F64
Replied by F64 on topic KZ440 Airbox Cap measurements please 11012-1086
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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14 Feb 2021 08:46 - 14 Feb 2021 08:51 #843464 by F64
Replied by F64 on topic KZ440 Airbox Cap measurements please 11012-1086
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.
The following user(s) said Thank You: kawi_lifer

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15 Feb 2021 10:14 #843516 by kawi_lifer
Replied by kawi_lifer on topic KZ440 Airbox Cap measurements please 11012-1086
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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