Air Box Modification - Kawasaki Ninja 250R Forum
 
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post #1 of 6 (permalink) Old 02-20-2012, 05:03 AM Thread Starter
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Air Box Modification

Here's the Air Box modification for the 99 Ninja 250, I posted on some other forums:

Found it difficult to remove the carburetor with the stock air box, thought it would probably be difficult going back together, too.

Decided to go with the K & N "drop-in" KA-2586 air filter keeping the original air box. Still wanted to modify the air box making it easy to remove/install the carburetor.

Removed the air box original brackets & foam filter as per K & N instructions.

This can be skipped if the original foam brackets and foam element
are to be used.

Removing air box split in half with one side slid forward & one side slid back with carburetor removed. Had to be "patient" getting the two air box halves out to be cut.



Air box halves before modification.


When cuts were made with the hacksaw, had to be "sure" the battery box was cut off without making any cuts or holes in the air box!!!!!!!


Air Box halves with battery box halves.


Snorkle modification for the K & N filter. This can be skipped if the original foam brackets and foam element are to be used.


Battery box bolted together.


Lots of room between the carburetor and air box with the battery box removed and air box slid back.


Air box installed with original battery box bolted in.


Hose Clamps installed on the air box hose to carburetor.


Finished job.


Bill

Last edited by exploring/carolina; 02-20-2012 at 06:49 AM.
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post #2 of 6 (permalink) Old 05-21-2012, 01:10 AM
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great post. I've been thinking about doing this to my '07. Thanks



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post #3 of 6 (permalink) Old 05-21-2012, 03:16 AM Thread Starter
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Quote:
Originally Posted by tadster00 View Post
great post. I've been thinking about doing this to my '07. Thanks
Going to remove the carb for maintenance in a few weeks, this mod makes it easy.

Thanks
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post #4 of 6 (permalink) Old 01-29-2015, 03:17 PM
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Keep posting such needed information. Thank's!
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post #5 of 6 (permalink) Old 01-29-2015, 06:22 PM Thread Starter
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Currently onverting this Ninja into a Cafe Racer. Will post a thread when I have more to show. Also refining the coolant Thermo-Bob installation.

Last edited by exploring/carolina; 01-29-2015 at 06:29 PM.
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post #6 of 6 (permalink) Old 09-13-2015, 05:37 PM
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Great idea! Will be doing this once I received the K&N drop in filter that I bought from 4 Wheel Online. By the way any changes with throttle respond after the modification?

Last edited by jamesjimmy; 09-13-2015 at 05:40 PM.
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