KZ440 Airbox Cap measurements please 11012-1086

KZ440 Airbox Cap measurements please 11012-1086 05 Feb 2021 09:15 #843023

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	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)? Attachment not found Attachment not found
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KZ440 Airbox Cap measurements please 11012-1086 06 Feb 2021 06:51 #843060

Nebr_Rex Offline User Posts: 1891 Thank you received: 298	Pics? . 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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KZ440 Airbox Cap measurements please 11012-1086 06 Feb 2021 08:41 #843068

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	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. Attachments:
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KZ440 Airbox Cap measurements please 11012-1086 09 Feb 2021 12:53 #843232

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	Nobody has one of these that can be measured?
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KZ440 Airbox Cap measurements please 11012-1086 10 Feb 2021 07:21 #843265

martin_csr Offline User Posts: 7983 Thank you received: 1621	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
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KZ440 Airbox Cap measurements please 11012-1086 10 Feb 2021 14:44 #843288

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	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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KZ440 Airbox Cap measurements please 11012-1086 11 Feb 2021 07:21 #843316

martin_csr
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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

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Last edit: by martin_csr.

KZ440 Airbox Cap measurements please 11012-1086 12 Feb 2021 08:43 #843379

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	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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KZ440 Airbox Cap measurements please 11012-1086 12 Feb 2021 19:12 #843400

F64
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81-KZ440D2
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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: by F64.

KZ440 Airbox Cap measurements please 11012-1086 14 Feb 2021 08:46 #843464

F64 Offline User 81-KZ440D2 Posts: 1028 Thank you received: 351	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 The following user(s) said Thank You: kawi_lifer
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KZ440 Airbox Cap measurements please 11012-1086 15 Feb 2021 10:14 #843516

kawi_lifer Topic Author Offline User Posts: 6 Thank you received: 0	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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