airbox box removal/ oh my! - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #1 of 28 Old 10-29-2019, 06:03 AM Thread Starter
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airbox box removal/ oh my!

using the eaglemike subframe kit made a perfect pivot to remove the airbox. subframe has to be removed or swung up to pull airbox


unfortunately the battery box is built into it



no worries, installed a lithium ion battery that weighs a fraction of the lead acid. i used a piece of flat stock and plastic battery lid top as my tray



went lectron using a uni filter. crankcase breather has a small uni filter also





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post #2 of 28 Old 10-29-2019, 11:39 AM
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Looks nice with that area opened up. Can you post a larger image of your last photo, or a new wide angle of the right side? PB image is pretty small.

2016 KLR 650
2017 BMW S1000RR (traded in for
2018 Ducati V4S
1983 GL1100 Goldwing
2017 Yamaha R1

Last edited by dan filipi; 10-29-2019 at 11:44 AM.
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post #3 of 28 Old 10-29-2019, 12:18 PM Thread Starter
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post #4 of 28 Old 10-30-2019, 10:09 AM
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I cracked my airbox a while back and bought a new one to replace it. Eagle Mike recommended against it stating that the crack just allowed more air in.

Once I got down to replacing it, I realized the amount of work that goes into it!

Yeah, it was a bear, but I got ‘er done.

There are two rules for being successful in life.

Rule 1: Never tell others everything you know.
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post #5 of 28 Old 10-30-2019, 10:18 AM Thread Starter
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Quote:
Originally Posted by Dan Diego View Post
I cracked my airbox a while back and bought a new one to replace it. Eagle Mike recommended against it stating that the crack just allowed more air in.

Once I got down to replacing it, I realized the amount of work that goes into it!
congrats on getting it in. the eaglemike subframe mod really helps also. the uni filter fits perfectly. no angle mount needed

Yeah, it was a bear, but I got ‘er done.
congrats
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post #6 of 28 Old 11-28-2019, 08:02 AM Thread Starter
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another one of my experiments bites the dust. couldn't get it dialed in with no airbox. reversed course. bought a used box and reinstalling. might try the cv carb with needle upgrade. i like change🤗
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post #7 of 28 Old 11-28-2019, 01:32 PM
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Quote:
Originally Posted by maverick9611 View Post
another one of my experiments bites the dust. couldn't get it dialed in with no airbox. reversed course. bought a used box and reinstalling. might try the cv carb with needle upgrade. i like change🤗

You’ve got the Lectron carburetor installed, right? If so, this save me a bit of trouble as I was debating pulling the air box while I have mine torn down.

I’m a bit on the fence with it as I still plan to hit some dirt roads and trails, but am concerned the air box may limit the air in-flow too much. So hearing you reinstalled the air box is a bit comforting.

What issues, if I may ask, were you having issues with?
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post #8 of 28 Old 11-28-2019, 02:01 PM
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It's a really bad idea to run without the airbox if you have any inclination to take the bike off pavement IMO. You can easily open up the airbox to support the flow necessary for even a well modded KLR whilst still retaining the advantages of having an airbox. Let me know if you'd like me to post the airbox testing links again if you haven't seen them.

Cheers,
Dave
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post #9 of 28 Old 11-28-2019, 02:06 PM
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Originally Posted by DPelletier View Post
Let me know if you'd like me to post the airbox testing links again if you haven't seen them.

Please do. It is one I haven’t seen yet. And I have been very hesitant to remove the air box because I do plan to ride it occasionally in dusty environments.

My air box currently has the L mod on the top and some weird inserts in the for. Each insert has a 1/8” hole in it. I was thinking at a minimum to buy a replacement door and use the 1” inserts with foam to provide additional air flow. If there are better modifications or what I had planned we’re not required, all the better
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post #10 of 28 Old 11-28-2019, 02:27 PM
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Those 1" inserts with foam in them are a marketing gimmick that makes no sense in the real world.

Holes are for letting air in, the filter is for filtering.
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