air box vs. filter

Joe Ricard · Posted: Mon Oct 08, 2012 7:48 am Post subject: air box vs. filter

not super familair with KT-100's but When I was helping my buddy put his new to him kart together I noticed the 3 hole air box did not have any filter inside.

That has just got to be a problem. Is it missing or not designed to have one.
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Arrow AX-8/ Rotax Sr.

Bob Ogden · Posted: Mon Oct 08, 2012 8:25 am Post subject:

It's designed to have a filter inside the air box.
Some people remove them because they like to suck crap into their engine so they can complain about the high maintenance cost on kart engines.

Joe Ricard · Posted: Mon Oct 08, 2012 9:14 am Post subject:

Yea that's what I figured. I'll have to look for a replacement for the box or else go with the K&N style as the local series rules don't define.
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Arrow AX-8/ Rotax Sr.

Walt Gifford · Posted: Mon Oct 08, 2012 9:57 am Post subject:

If you want to get in line with WKA rules it needs to be a two hole air box. Internal filter is highly recommended for engine life. K&N filter would be louder so you might want ear plugs if using one also you can't choke it down if the throttle sticks.

Gif Cool

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FAA certified jet engine and aircraft technician
Nicholson Speedway class champion 2001
Yamaha KT100 Service Center
40 years karting experience