Carb heat 912ULS

[Dave S]

Paul,

On your light sport, Where is the non-heated air intake located? Can't see that from the photo.

[Paul Z]

The air cleaner is on the air plenum, hangs down from the center between the carbs just behind the engine. I could go take a photo.

If you zoom up on the photo the scat tube is hooked to a flange that is attached to the exhaust. The bracket has 3 attachment legs, and the actual flange is about 1/2 inch from the exhaust. Air flow frount to rear not much goes up the scat tube as long as the butterfly valve is closed off. I'll see if I have a photo of the air intake manifold air box.

[Dave S]

Hi Paul,

Your explanation makes it perfectly clear. Our Kitfox is an E-AB, not a LS; however, we do have the Rotax Airbox so your comments ring true to as to how how it would be hooked up. Currently we have an alternate air (no carb heat) with a screen over the tube stub on the airbox with the primary air intake plumbed to a flange on the side of the NACA vent - so the filter is in the air duct just ahead of the radiator.

With some time on the KF, one of the things we observed with regard to the airbox is the rubber carb flanges have no wear or cracks....I replaced them @ the 5 year recommended time - but, I feel that I replaced perfectly good parts as the only way to tell the old from the new is the old ones smelled like gasoline and the new ones did not

Thanks for the info - I do like the carb heat setup you have compared to the somewhat complicated earlier version. Think I need to talk to John McB. when I get the time.

[Dusty]

Here is some photos of a home grown carb heat system that is simple and works well